What font does Brilliant use?

Brilliant’s website uses four typefaces: CoFo Brilliant (headings and body text), self-hosted; CoFo Robert, self-hosted; KaTeX_Main, self-hosted; Source Code Pro, self-hosted.

What are Brilliant’s brand colours?

The main colours on brilliant.org are Cornflower Blue (#7491FF), Deep Gold (#F7C325), Violet (#FF90E0), Light Gold (#F9D25C), Blue (#0000FF) and Honey Dew (#D4F5DD).

What colour is Brilliant’s text and background?

Body text is #000000 on a #FFFFFF background.

Where is Brilliant’s logo from?

The logo shown in this guide was found on brilliant.org’s homepage. For official logo files and usage rules, check Brilliant’s own brand or press page.

Is this Brilliant’s official style guide?

No. SiteStyleGuide made it from brilliant.org’s public web pages on 27 October 2026, and isn’t affiliated with Brilliant. Members can refresh a guide after 90 days to pick up changes.

Unofficial A style guide made by SiteStyleGuide from brilliant.org’s public web pages. Not affiliated with or endorsed by Brilliant. The real site is brilliant.org ↗

Unofficial style guide

Brilliantstyle guide

Brilliant’s website (brilliant.org) uses CoFo Brilliant for its headings and body text. Its palette is led by Cornflower Blue (#7491FF), Deep Gold (#F7C325) and Violet (#FF90E0), with #000000 text on #FFFFFF. Captured from the live site on 27 October 2026.

Website: brilliant.org
Typefaces: CoFo Brilliant, CoFo Robert, KaTeX_Main
Palette: 4 neutrals, 12 colours, 3 gradients
Captured: 27 Oct 2026 · added by @sitestyleguide

Save Add to collection Share Report

Screenshot of the brilliant.org homepage on a desktop screen — Screenshot of brilliant.org on a 1440 px desktop screen, 27 Oct 2026.

Screenshot of the brilliant.org homepage on a phone — On a phone, 390 px.

Identity & metadata

What browsers, search engines and social cards show before anyone reaches the page, from the homepage’s <head>.

Title &
description

Page title: Brilliant | Your Personal Tutor for Math and Coding; ● 51 / 60 characters
Meta description: Visual, interactive tutoring in math and coding, from 5th grade through college. Master concepts in algebra, calculus, Python, computer science, and more.; ● 154 / 160 characters
og:title: Brilliant | Your Personal Tutor for Math and Coding
og:description: Visual, interactive tutoring in math and coding, from 5th grade through college. Master concepts in algebra, calculus, Python, computer science, and more.
Language: en

In search results

Brillianthttps://brilliant.org/

Brilliant | Your Personal Tutor for Math and Coding

Visual, interactive tutoring in math and coding, from 5th grade through college. Master concepts in algebra, calculus, Python, computer science, and more.

When shared

brilliant.org

Brilliant | Your Personal Tutor for Math and Coding

Visual, interactive tutoring in math and coding, from 5th grade through college. Master concepts in algebra, …

Logo & favicons

Found as: SVG in the header. SVG, 114 × 27.

Logo

On white

On black

On Cornflower Blue

Favicons

8 found

152 px · PNG apple-touch-icon
144 px · PNG apple-touch-icon
120 px · PNG apple-touch-icon
114 px · PNG apple-touch-icon
76 px · PNG apple-touch-icon
72 px · PNG apple-touch-icon
64 px · ICO icon
57 px · PNG apple-touch-icon

Brilliant | Your Personal Tutor for Math and Coding

Light browser tab

Brilliant | Your Personal Tutor for Math and Coding

Dark browser tab

Colour

Read from the site’s stylesheets and weighted by where each colour is used. Names are the nearest standard colour name. Click a swatch to copy its hex code.

Contrast is against the site’s text colour (#000000) and white, using WCAG 2 ratios: 4.5 for body text, 3 for large text.

Colour

Balance

How much each colour is used

White 41.1%
Black 14.3%
Cornflower Blue 6.7%
Deep Gold 5.6%
Violet 5.1%
Light Gold 3.7%
Off White 3.5%
Cool Off White 3%
Blue 2.7%
Honey Dew 2.5%
Royal Blue 2.4%
Misty Rose 2.2%
Red 2%
Salmon 1.9%
Pale Turquoise 1.7%
Khaki 1.7%

By how often each colour appears in the site’s CSS, weighted by where (body, headings, buttons), not by area on the screen.

Neutrals

Text, backgrounds and structure

White

HEX

RGB

HSL

OKLCH

CMYK
0 0 0 0

On text
21.00:1 AAA

On white
—

Background, text, border · [data-theme=dark]:not(#\##\##\##\##\##\##\##\##\##\#) .dark\:panda-bg-i_linear-g, .panda-bg-i_linear-gradient$to_bottom\,_token\(colors\.bg\.secondary$\,_color-
Black

HEX

RGB

HSL

OKLCH

CMYK
0 0 0 100

On text
—

On white
21.00:1 AAA

Text, background, border · html, body
Off White

HEX

RGB

HSL

OKLCH

CMYK
0 0 0 10

On text
16.67:1 AAA

On white
1.26:1 Fail

Background, border · .panda-bg_special\.endstate\.upsell\.ctaBg:not(#\##\##\##\##\##\##\##\##\##\#), .panda-bg_autoflip\.gray\.200:not(#\##\##\##\##\##\##\##\##\##\#)
Cool Off White

HEX

RGB

HSL

OKLCH

CMYK
5 0 0 3

On text
19.13:1 AAA

On white
1.10:1 Fail

Background · .panda-bg-i_linear-gradient$90deg\,_token\(colors\.gray\.100$_0\%\,_rgba\(242\, .panda-bg_bg\.teal\.tertiary:not(#\##\##\##\##\##\##\##\##\##\#)

Colours

Brand colours and accents, most used first

Cornflower Blue

HEX

RGB

HSL

OKLCH

CMYK
55 43 0 0

On text
7.24:1 AAA

On white
2.90:1 Fail

Background, border, text · _73\.53\%\):not(#\##\##\##\##\##\##\##\##\##\#), _73\.53\%\):not(:is([data-theme=light] *,[data-theme=light]))
Deep Gold

HEX

RGB

HSL

OKLCH

CMYK
0 21 85 3

On text
12.79:1 AAA

On white
1.64:1 Fail

Background, text, border · _73\.53\%\):not(#\##\##\##\##\##\##\##\##\##\#), _73\.53\%\):not(:is([data-theme=light] *,[data-theme=light]))
Violet

HEX

RGB

HSL

OKLCH

CMYK
0 44 12 0

On text
10.32:1 AAA

On white
2.04:1 Fail

Background, text · _73\.53\%\):not(#\##\##\##\##\##\##\##\##\##\#), _73\.53\%\):not(:is([data-theme=light] *,[data-theme=light]))
Light Gold

HEX

RGB

HSL

OKLCH

CMYK
0 16 63 2

On text
14.40:1 AAA

On white
1.46:1 Fail

Background, border · .panda-badge--compound__colorPalette_premium__variant_solid:not(#\##\##\##\##\##, .panda-bg_\[linear-gradient$token\(colors\.bg\.primary$\,_token\(colors\.bg\.p
Blue

HEX

RGB

HSL

OKLCH

CMYK
100 100 0 0

On text
2.44:1 Fail

On white
8.59:1 AAA

Background, border, text · .panda-bg_\[color-mix$in_srgb\,_token\(colors\.blue$_12\%\,_transparent\)\]:no, .panda-bg_\[color-mix$in_srgb\,_token\(colors\.blue$_28\%\,_transparent\)\]:no
Honey Dew

HEX

RGB

HSL

OKLCH

CMYK
13 0 10 4

On text
17.90:1 AAA

On white
1.17:1 Fail

Background, graphic · .\[\&_\.btn-wiki-mcq\.correct\]\:panda-bg-c_bg\.success\.secondary:not(#\##\##\#, .panda-bg_bg\.green\.secondary:not(#\##\##\##\##\##\##\##\##\##\#)
Royal Blue

HEX

RGB

HSL

OKLCH

CMYK
73 57 0 0

On text
4.88:1 AA

On white
4.30:1 AA large

Background, text, border · .panda-bg_bg\.blue\.primary:not(#\##\##\##\##\##\##\##\##\##\#), .panda-bg-c_bg\.blue\.primary:not(#\##\##\##\##\##\##\##\##\##\#)
Misty Rose

HEX

RGB

HSL

OKLCH

CMYK
0 13 13 0

On text
16.87:1 AAA

On white
1.24:1 Fail

Background, border · .\[\&_\.btn-wiki-mcq\.incorrect\]\:panda-bg-c_bg\.danger\.secondary:not(#\##\##\, .panda-bg_bg\.danger\.secondary:not(#\##\##\##\##\##\##\##\##\##\#)
Red

HEX

RGB

HSL

OKLCH

CMYK
0 100 100 0

On text
5.25:1 AA

On white
4.00:1 AA large

Background, border, text · .panda-bg_\[color-mix$in_srgb\,_token\(colors\.red$_12\%\,_transparent\)\]:not, .panda-bg_\[color-mix$in_srgb\,_token\(colors\.red$_28\%\,_transparent\)\]:not
Salmon

HEX

RGB

HSL

OKLCH

CMYK
0 64 64 0

On text
6.98:1 AA

On white
3.01:1 AA large

Background, border, text · .panda-bg_bg\.danger\.primary:not(#\##\##\##\##\##\##\##\##\##\#), .panda-bg_bg\.red\.primary:not(#\##\##\##\##\##\##\##\##\##\#)
Pale Turquoise

HEX

RGB

HSL

OKLCH

CMYK
27 0 3 14

On text
13.69:1 AAA

On white
1.53:1 Fail

Background, text · .panda-bg_teal\.300:not(#\##\##\##\##\##\##\##\##\##\#), .panda-bg-grad_hueShift\.color\.blue\.secondary:not(#\##\##\##\##\##\##\##\##\##
Khaki

HEX

RGB

HSL

OKLCH

CMYK
0 10 38 1

On text
16.72:1 AAA

On white
1.26:1 Fail

Background, text · .panda-bg_autoflip\.yellow\.300:not(#\##\##\##\##\##\##\##\##\##\#), .panda-bg_special\.lesson\.feedback\.retryable:not(#\##\##\##\##\##\##\##\##\##\

Gradients

linear-gradient(90deg, #f2f2f2 0%, #f2f2f200 100%), linear-gradient(180deg, #fff0fb 0%, #b689ff 100%)
linear-gradient(90deg, #f2f2f2 0%, #f2f2f200 100%), linear-gradient(180deg, #eaf7f6 0%, #7491ff 100%)
linear-gradient(90deg, #f2f2f2 0%, #f2f2f200 100%), linear-gradient(180deg, #fef9e9 0%, #ffa95a 100%)

Dark mode

Switched on by the site

Aa Light · #000000 on #FFFFFF

Aa Dark · #FFFFFF on #141414 · 18.42:1 AAA

White

#FFFFFF
Charcoal

#383838
Near Black

#1E1E1E
Grey

#808080
Black

#000000
Near Black

#141414
Dark Grey

#4C4C4C
Cornflower Blue

#7491FF
Violet

#FF90E0
Honey Dew

#D4F5DD
Dark Grey

#666666
Lavender

#DAE2FF

Typography

Faces from Google Fonts are shown in the real thing. Others are licensed to the site, so they show in your device’s copy if you have one, or a stand-in if not.

CoFo Brilliant

Aa 400 Aa 700

CoFo Brilliant

Self-hosted · weights 400, 500, 700 · headings, body, buttons · shown in a stand-in if you don’t have it

Aa 500

CoFo Robert

Self-hosted · weights 500 · headings · shown in a stand-in if you don’t have it

Aa 400 Aa 700

KaTeX_Main

Self-hosted · weights 400, 700 · shown in a stand-in if you don’t have it

Aa 400 Aa 700

Source Code Pro

Self-hosted · weights 400, 500, 700 · shown in a stand-in if you don’t have it

ABCDEFGHIJKLMNOPQRSTUVWXYZ
abcdefghijklmnopqrstuvwxyz
0123456789 ! ? & @ % $ – ’ “ ”

Type scale

From the site’s CSS

Heading 1 2em · 32 px / 1.34em weight 700

Brilliant

Heading 2 24px / 1.25 weight 700 · CoFo Brilliant

Brilliant | Your Personal Tutor for Math and Co…

Heading 3 20px / 1.25 weight 700 · CoFo Brilliant

Brilliant | Your Personal Tutor for Math and Co…

Heading 4 20px / 1.25 weight 500 · CoFo Brilliant

Brilliant | Your Personal Tutor for Math and Co…

Paragraph 25px / 1.7 weight 700

Visual, interactive tutoring in math and coding, from 5th grade through college. Master concepts in algebra, calculus, Python, computer sci…

Small 80%

Visual, interactive tutoring in math and coding, from 5th grade through college. Master concepts in algebra, calculus, Python, computer sci…

Sizes in use

Most common across the site

20pxline 1.25 · 14 rules
19pxline 30px · 10 rules
16pxline 1.5 · 26 rules
14pxline 1.5 · 16 rules
13px11 rules
12pxline 1.5 · 12 rules
11px11 rules
10pxline 1.5 · 9 rules

Elements

The main button and link as the site’s CSS draws them, and the corner radii and shadows it uses most.

Elements

Button

Get started

.\[\&_\.btn-wiki-mcq\.correct\]\:panda-bg-c_bg\.success\.secondary:not(#\##\##\# · #D4F5DD

Corner radius

.5rem · 8×
9999px · 7×
1.25rem · 6×
inherit · 6×
.75rem · 4×
.25rem · 4×

Shadows

0px 0px 0px 3px #456dff
0px 0px 15px 0px #0000001a
0px 0px 25px 0px #0003
focus

Layout

Breakpoints from the site’s media queries and the widths its content is held to, with how often each appears.

Grid

Breakpoints

360

481

491

768

769

900

992

1280

On a scale of 0 to 1440 px.

Content widths (max-width)

1216 px

640 px

592 px

480 px

340 px

300 px

Notes

Plain checks on what was found. Worth fixing if you look after this site.

Notes

● FineThe title is 51 characters, short enough to show in full in search results.

Questions

Quick answers, from the same capture as the rest of this guide.

Questions

What font does Brilliant use?: Brilliant’s website uses four typefaces: CoFo Brilliant (headings and body text), self-hosted; CoFo Robert, self-hosted; KaTeX_Main, self-hosted; Source Code Pro, self-hosted.
What are Brilliant’s brand colours?: The main colours on brilliant.org are Cornflower Blue (#7491FF), Deep Gold (#F7C325), Violet (#FF90E0), Light Gold (#F9D25C), Blue (#0000FF) and Honey Dew (#D4F5DD).
What colour is Brilliant’s text and background?: Body text is #000000 on a #FFFFFF background.
Where is Brilliant’s logo from?: The logo shown in this guide was found on brilliant.org’s homepage. For official logo files and usage rules, check Brilliant’s own brand or press page.
Is this Brilliant’s official style guide?: No. SiteStyleGuide made it from brilliant.org’s public web pages on 27 October 2026, and isn’t affiliated with Brilliant. Members can refresh a guide after 90 days to pick up changes.

Design tokens

Everything above as CSS variables, ready to paste into a project. Members can download the tokens as files for Figma (Tokens Studio), Style Dictionary and Tailwind.

Tokens

brilliant-org-tokens.css

Download

Free with an account: sign up or sign in, and you’ll come straight back here.

/* brilliant.org design tokens, from SiteStyleGuide (https://sitestyleguide.com/brilliant.org) */
:root {
  /* Colours */
  --text: #000000;
  --background: #FFFFFF;
  --colour-white: #FFFFFF;
  --colour-black: #000000;
  --colour-off-white: #E5E5E5;
  --colour-cool-off-white: #EAF7F6;
  --colour-cornflower-blue: #7491FF;
  --colour-deep-gold: #F7C325;
  --colour-violet: #FF90E0;
  --colour-light-gold: #F9D25C;
  --colour-blue: #0000FF;
  --colour-honey-dew: #D4F5DD;
  --colour-royal-blue: #456DFF;
  --colour-misty-rose: #FFDFDF;
  --colour-red: #FF0000;
  --colour-salmon: #FF5D5D;
  --colour-pale-turquoise: #A0DCD5;
  --colour-khaki: #FCE49D;
  --gradient-1: linear-gradient(90deg, #f2f2f2 0%, #f2f2f200 100%), linear-gradient(180deg, #fff0fb 0%, #b689ff 100%);
  --gradient-2: linear-gradient(90deg, #f2f2f2 0%, #f2f2f200 100%), linear-gradient(180deg, #eaf7f6 0%, #7491ff 100%);
  --gradient-3: linear-gradient(90deg, #f2f2f2 0%, #f2f2f200 100%), linear-gradient(180deg, #fef9e9 0%, #ffa95a 100%);

  /* Typefaces */
  --font-headings: 'CoFo Brilliant', sans-serif;
  --font-body: 'CoFo Brilliant', sans-serif;
  --font-buttons: 'CoFo Brilliant', sans-serif;
  --font-other: 'KaTeX_Main';

  /* Type scale */
  --text-h1: 2em;
  --leading-h1: 1.34em;
  --text-h2: 24px;
  --leading-h2: 1.25;
  --text-h3: 20px;
  --leading-h3: 1.25;
  --text-h4: 20px;
  --leading-h4: 1.25;
  --text-p: 25px;
  --leading-p: 1.7;
  --text-small: 80%;

  /* Shape */
  --radius-1: .5rem;
  --radius-2: 9999px;
  --radius-3: 1.25rem;
  --radius-4: inherit;
  --radius-5: .75rem;
  --radius-6: .25rem;

  /* Layout (breakpoints can’t be used in media queries as variables; they’re here for reference) */
  --breakpoint-1: 360px;
  --breakpoint-2: 481px;
  --breakpoint-3: 491px;
  --breakpoint-4: 768px;
  --breakpoint-5: 769px;
  --breakpoint-6: 900px;
  --breakpoint-7: 992px;
  --breakpoint-8: 1280px;
  --max-width-1: 1216px;
  --max-width-2: 640px;
  --max-width-3: 592px;
  --max-width-4: 480px;
  --max-width-5: 340px;
  --max-width-6: 300px;
}

{
    "site": "brilliant.org",
    "source": "https://sitestyleguide.com/brilliant.org",
    "text": "#000000",
    "background": "#FFFFFF",
    "colours": [
        {
            "name": "White",
            "hex": "#FFFFFF",
            "rgb": [
                255,
                255,
                255
            ]
        },
        {
            "name": "Black",
            "hex": "#000000",
            "rgb": [
                0,
                0,
                0
            ]
        },
        {
            "name": "Off White",
            "hex": "#E5E5E5",
            "rgb": [
                229,
                229,
                229
            ]
        },
        {
            "name": "Cool Off White",
            "hex": "#EAF7F6",
            "rgb": [
                234,
                247,
                246
            ]
        },
        {
            "name": "Cornflower Blue",
            "hex": "#7491FF",
            "rgb": [
                116,
                145,
                255
            ]
        },
        {
            "name": "Deep Gold",
            "hex": "#F7C325",
            "rgb": [
                247,
                195,
                37
            ]
        },
        {
            "name": "Violet",
            "hex": "#FF90E0",
            "rgb": [
                255,
                144,
                224
            ]
        },
        {
            "name": "Light Gold",
            "hex": "#F9D25C",
            "rgb": [
                249,
                210,
                92
            ]
        },
        {
            "name": "Blue",
            "hex": "#0000FF",
            "rgb": [
                0,
                0,
                255
            ]
        },
        {
            "name": "Honey Dew",
            "hex": "#D4F5DD",
            "rgb": [
                212,
                245,
                221
            ]
        },
        {
            "name": "Royal Blue",
            "hex": "#456DFF",
            "rgb": [
                69,
                109,
                255
            ]
        },
        {
            "name": "Misty Rose",
            "hex": "#FFDFDF",
            "rgb": [
                255,
                223,
                223
            ]
        },
        {
            "name": "Red",
            "hex": "#FF0000",
            "rgb": [
                255,
                0,
                0
            ]
        },
        {
            "name": "Salmon",
            "hex": "#FF5D5D",
            "rgb": [
                255,
                93,
                93
            ]
        },
        {
            "name": "Pale Turquoise",
            "hex": "#A0DCD5",
            "rgb": [
                160,
                220,
                213
            ]
        },
        {
            "name": "Khaki",
            "hex": "#FCE49D",
            "rgb": [
                252,
                228,
                157
            ]
        }
    ],
    "fonts": [
        {
            "name": "CoFo Brilliant",
            "stack": "CoFo Brilliant, sans-serif",
            "weights": [
                400,
                500,
                700
            ],
            "source": "Self-hosted"
        },
        {
            "name": "CoFo Robert",
            "stack": "CoFo Robert, sans-serif",
            "weights": [
                500
            ],
            "source": "Self-hosted"
        },
        {
            "name": "KaTeX_Main",
            "stack": "KaTeX_Main",
            "weights": [
                400,
                700
            ],
            "source": "Self-hosted"
        },
        {
            "name": "Source Code Pro",
            "stack": "Source Code Pro, monospace",
            "weights": [
                400,
                500,
                700
            ],
            "source": "Self-hosted"
        },
        {
            "name": "CoFo Semi Mono",
            "stack": "CoFo Semi Mono, monospace",
            "weights": [
                400,
                500,
                700
            ],
            "source": "Self-hosted"
        },
        {
            "name": "KaTeX_SansSerif",
            "stack": "KaTeX_SansSerif",
            "weights": [
                400,
                700
            ],
            "source": "Self-hosted"
        }
    ]
}

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Captured from brilliant.org on 27 October 2026. SiteStyleGuide isn’t affiliated with or endorsed by Brilliant; this guide describes the public website for reference.

Brilliantstyle guide

Title &description

Logo

Favicons

Colour

Balance

Neutrals

White

Black

Off White

Cool Off White

Colours

Cornflower Blue

Deep Gold

Violet

Light Gold

Blue

Honey Dew

Royal Blue

Misty Rose

Red

Salmon

Pale Turquoise

Khaki

Gradients

Dark mode

CoFo Brilliant

Type scale

Sizes in use

Elements

Grid

Notes

Questions

Tokens

Share

Run brilliant.org?

Similar colours

Spotify for Creators

mama.cn

DepositPhotos

Facebook

Title &
description