What font does doi.org use?

doi.org’s website uses two typefaces: futura-pt-bold (headings), adobe Fonts; futura-pt (body text), adobe Fonts.

What are doi.org’s brand colours?

The main colours on doi.org are Gold (#FFC107), Light Royal Blue (#0D6EFD), Sky Blue (#0DCAF0), Crimson (#DC3545), Light Sea Green (#198754) and Slate Grey (#5C7292).

What colour is doi.org’s text and background?

Body text is #707070 on a #FFFFFF background.

Is this doi.org’s official style guide?

No. SiteStyleGuide made it from doi.org’s public web pages on 5 November 2026, and isn’t affiliated with doi.org. Members can refresh a guide after 90 days to pick up changes.

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

Unofficial style guide

doi.orgstyle guide

doi.org’s website (doi.org) sets its headings in futura-pt-bold and its body text in futura-pt. Its palette is led by Gold (#FFC107), Light Royal Blue (#0D6EFD) and Sky Blue (#0DCAF0), with #707070 text on #FFFFFF. Captured from the live site on 5 November 2026.

Website: doi.org
Typefaces: futura-pt-bold, futura-pt
Palette: 4 neutrals, 12 colours, 2 gradients
Captured: 5 Nov 2026 · added by @sitestyleguide

Save Add to collection Share Report

Screenshot of the doi.org homepage on a desktop screen — Screenshot of doi.org on a 1440 px desktop screen, 5 Nov 2026.

Screenshot of the doi.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: Home Page; ● 9 / 60 characters
Meta description: Missing; ▲ 0 / 160 characters
Language: en-us

In search results

doi.orghttps://www.doi.org/

Home Page

When shared

No og:image, so no picture

doi.org

Home Page

Logo & favicons

No logo could be found on the homepage.

Logo

Favicons

6 found

512 px · PNG apple-touch-icon-precomposed
192 px · PNG apple-touch-icon-precomposed
180 px · PNG apple-touch-icon-precomposed
48 px · ICO icon
32 px · PNG icon
16 px · PNG icon

Home Page

Light browser tab

Home Page

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 (#707070) and white, using WCAG 2 ratios: 4.5 for body text, 3 for large text.

Colour

Balance

How much each colour is used

White 32.3%
Black 18.6%
Cool Near Black 7.6%
Gold 7.3%
Light Royal Blue 6.3%
Cool Grey 5.9%
Sky Blue 4.8%
Crimson 4.1%
Light Sea Green 4.1%
Slate Grey 3.6%
Deep Royal Blue 1.8%
Deep Sea Green 1.1%
Brown 1.1%
Deep Steel Blue 0.6%
Red 0.5%
Light Steel Blue 0.4%

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
4.95:1 AA

On white
—

Text, background, border · body, .nav-tabs .nav-item.show .nav-link
Black

HEX

RGB

HSL

OKLCH

CMYK
0 0 0 100

On text
4.24:1 AA large

On white
21.00:1 AAA

Text, background, border · --bs-table-striped-color, --bs-table-active-color
Cool Near Black

HEX

RGB

HSL

OKLCH

CMYK
20 10 0 84

On text
3.12:1 AA large

On white
15.43:1 AAA

Text, background, border · .btn-dark, .btn-dark.disabled
Cool Grey

HEX

RGB

HSL

OKLCH

CMYK
14 6 0 51

On text
1.06:1 Fail

On white
4.69:1 AA

Text, background, border · .btn-secondary, .btn-secondary.disabled

Colours

Brand colours and accents, most used first

Gold

HEX

RGB

HSL

OKLCH

CMYK
0 24 97 0

On text
3.04:1 AA large

On white
1.63:1 Fail

Background, text, border · .btn-warning, .btn-warning.disabled
Light Royal Blue

HEX

RGB

HSL

OKLCH

CMYK
95 57 0 1

On text
1.10:1 Fail

On white
4.50:1 AA

Background, text, border · .btn-primary, .btn-primary.disabled
Sky Blue

HEX

RGB

HSL

OKLCH

CMYK
95 16 0 6

On text
2.53:1 Fail

On white
1.96:1 Fail

Background, border, text · .btn-info, .btn-info.disabled
Crimson

HEX

RGB

HSL

OKLCH

CMYK
0 76 69 14

On text
1.09:1 Fail

On white
4.53:1 AA

Background, text, border · .btn-danger, .btn-danger.disabled
Light Sea Green

HEX

RGB

HSL

OKLCH

CMYK
81 0 38 47

On text
1.09:1 Fail

On white
4.53:1 AA

Background, text, border · .btn-success, .btn-success.disabled
Slate Grey

HEX

RGB

HSL

OKLCH

CMYK
37 22 0 43

On text
1.01:1 Fail

On white
4.91:1 AA

Background, text, border · .tabs-content .content.visible .section-title, a
Deep Royal Blue

HEX

RGB

HSL

OKLCH

CMYK
95 56 0 21

On text
1.30:1 Fail

On white
6.44:1 AA

Background, text, border · .btn-primary:hover, .btn-check:focus+.btn-primary
Deep Sea Green

HEX

RGB

HSL

OKLCH

CMYK
82 0 38 55

On text
1.19:1 Fail

On white
5.87:1 AA

Background, border, text · .btn-success:hover, .btn-check:focus+.btn-success
Brown

HEX

RGB

HSL

OKLCH

CMYK
0 76 68 27

On text
1.19:1 Fail

On white
5.91:1 AA

Background, border, text · .btn-danger:hover, .btn-check:focus+.btn-danger
Deep Steel Blue

HEX

RGB

HSL

OKLCH

CMYK
16 10 0 7

On text
3.34:1 AA large

On white
1.48:1 Fail

Background, border · section.home-banner, --bs-table-active-bg
Red

HEX

RGB

HSL

OKLCH

CMYK
0 100 100 0

On text
1.24:1 Fail

On white
4.00:1 AA large

Text, border · code, pre
Light Steel Blue

HEX

RGB

HSL

OKLCH

CMYK
19 11 0 0

On text
3.77:1 AA large

On white
1.31:1 Fail

Background · --bs-table-bg, --bs-table-striped-bg

Gradients

linear-gradient(45deg,rgba(255,255,255,.15) 25%,transparent 25%,transparent 50%,rgba(255,255,255,.15) 50%,rgba(255,255,255,.15) 75%,transparent 75%,transparent)
linear-gradient(180deg, rgba(255, 255, 255, 0.15), rgba(255, 255, 255, 0))

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.

futura-pt-bold

Aa 700

futura-pt-bold

Adobe Fonts · weights 700 · headings · shown in a stand-in if you don’t have it

Aa 400

futura-pt

Adobe Fonts · weights 400 · body · shown in a stand-in if you don’t have it

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

Type scale

From the site’s CSS

Heading 1 calc(1.375rem + 1.5vw) / 1.2 weight 500 · uppercase · futura-pt-bold

doi.org

Heading 2 calc(1.325rem + .9vw) / 1.2 weight 500 · uppercase · futura-pt-bold

Home Page

Heading 3 calc(1.3rem + .6vw) / 1.2 weight 500 · futura-pt-bold

Home Page

Heading 4 calc(1.275rem + .3vw) / 1.2 weight 500 · futura-pt-bold

Home Page

Heading 5 1.25rem · 20 px / 1.2 weight 500 · futura-pt-bold

Home Page

Heading 6 1rem · 16 px / 1.2 weight 500 · futura-pt-bold

Home Page

Body 18px / 1.5 weight 300 · futura-pt

The quick brown fox jumps over the lazy dog.

Small .875em · 14 px

The quick brown fox jumps over the lazy dog.

Link 2rem · 32 px / 2rem weight 700 · uppercase · futura-pt-bold

Sizes in use

Most common across the site

40px5 rules
32pxline .03125em · 6 rules
24pxline .04167em · 5 rules
21px15 rules
20pxline 1 · 14 rules
18px5 rules
16pxline 1.5 · 20 rules
14pxline 1.5 · 26 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-primary · #0D6EFD

Link

Read our latest news today.

a · #0D6EFD

Corner radius

.25rem · 22×
50% · 14×
.3rem · 6×
.2rem · 5×
1rem · 5×
10px · 2×

Shadows

0 0 0 .25rem rgba(13,110,253,.25)
0 0 0 .25rem rgba(25,135,84,.25)
0 0 0 .25rem rgba(220,53,69,.25)
0 0 0 1px #fff,0 0 0 .25rem rgba(13,110,253,.25)

Layout

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

Grid

Breakpoints

480

576

768

960

992

1200

1260

1400

On a scale of 0 to 1440 px.

Content widths (max-width)

1320 px

1140 px

960 px

720 px

540 px

500 px

Notes

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

Notes

● FineThe title is 9 characters, short enough to show in full in search results.
▲ CheckThere is no meta description, so search engines will pick text from the page.
▲ CheckThere is no og:image, so links shared on social media show no picture.

Questions

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

Questions

What font does doi.org use?: doi.org’s website uses two typefaces: futura-pt-bold (headings), adobe Fonts; futura-pt (body text), adobe Fonts.
What are doi.org’s brand colours?: The main colours on doi.org are Gold (#FFC107), Light Royal Blue (#0D6EFD), Sky Blue (#0DCAF0), Crimson (#DC3545), Light Sea Green (#198754) and Slate Grey (#5C7292).
What colour is doi.org’s text and background?: Body text is #707070 on a #FFFFFF background.
Is this doi.org’s official style guide?: No. SiteStyleGuide made it from doi.org’s public web pages on 5 November 2026, and isn’t affiliated with doi.org. 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

doi-org-tokens.css

Download

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

/* doi.org design tokens, from SiteStyleGuide (https://sitestyleguide.com/doi.org) */
:root {
  /* Colours */
  --text: #707070;
  --background: #FFFFFF;
  --colour-white: #FFFFFF;
  --colour-black: #000000;
  --colour-cool-near-black: #212529;
  --colour-cool-grey: #6C757D;
  --colour-gold: #FFC107;
  --colour-light-royal-blue: #0D6EFD;
  --colour-sky-blue: #0DCAF0;
  --colour-crimson: #DC3545;
  --colour-light-sea-green: #198754;
  --colour-slate-grey: #5C7292;
  --colour-deep-royal-blue: #0A58CA;
  --colour-deep-sea-green: #157347;
  --colour-brown: #BB2D3B;
  --colour-deep-steel-blue: #C7D5ED;
  --colour-red: #FF0000;
  --colour-light-steel-blue: #CFE2FF;
  --gradient-1: linear-gradient(45deg,rgba(255,255,255,.15) 25%,transparent 25%,transparent 50%,rgba(255,255,255,.15) 50%,rgba(255,255,255,.15) 75%,transparent 75%,transparent);
  --gradient-2: linear-gradient(180deg, rgba(255, 255, 255, 0.15), rgba(255, 255, 255, 0));

  /* Typefaces */
  --font-headings: 'futura-pt-bold';
  --font-body: 'futura-pt';

  /* Type scale */
  --text-h1: calc(1.375rem + 1.5vw);
  --leading-h1: 1.2;
  --text-h2: calc(1.325rem + .9vw);
  --leading-h2: 1.2;
  --text-h3: calc(1.3rem + .6vw);
  --leading-h3: 1.2;
  --text-h4: calc(1.275rem + .3vw);
  --leading-h4: 1.2;
  --text-h5: 1.25rem;
  --leading-h5: 1.2;
  --text-h6: 1rem;
  --leading-h6: 1.2;
  --text-body: 18px;
  --leading-body: 1.5;
  --text-small: .875em;
  --text-a: 2rem;
  --leading-a: 2rem;

  /* Shape */
  --radius-1: .25rem;
  --radius-2: 50%;
  --radius-3: .3rem;
  --radius-4: .2rem;
  --radius-5: 1rem;
  --radius-6: 10px;

  /* Layout (breakpoints can’t be used in media queries as variables; they’re here for reference) */
  --breakpoint-1: 480px;
  --breakpoint-2: 576px;
  --breakpoint-3: 768px;
  --breakpoint-4: 960px;
  --breakpoint-5: 992px;
  --breakpoint-6: 1200px;
  --breakpoint-7: 1260px;
  --breakpoint-8: 1400px;
  --max-width-1: 1320px;
  --max-width-2: 1140px;
  --max-width-3: 960px;
  --max-width-4: 720px;
  --max-width-5: 540px;
  --max-width-6: 500px;
}

{
    "site": "doi.org",
    "source": "https://sitestyleguide.com/doi.org",
    "text": "#707070",
    "background": "#FFFFFF",
    "colours": [
        {
            "name": "White",
            "hex": "#FFFFFF",
            "rgb": [
                255,
                255,
                255
            ]
        },
        {
            "name": "Black",
            "hex": "#000000",
            "rgb": [
                0,
                0,
                0
            ]
        },
        {
            "name": "Cool Near Black",
            "hex": "#212529",
            "rgb": [
                33,
                37,
                41
            ]
        },
        {
            "name": "Cool Grey",
            "hex": "#6C757D",
            "rgb": [
                108,
                117,
                125
            ]
        },
        {
            "name": "Gold",
            "hex": "#FFC107",
            "rgb": [
                255,
                193,
                7
            ]
        },
        {
            "name": "Light Royal Blue",
            "hex": "#0D6EFD",
            "rgb": [
                13,
                110,
                253
            ]
        },
        {
            "name": "Sky Blue",
            "hex": "#0DCAF0",
            "rgb": [
                13,
                202,
                240
            ]
        },
        {
            "name": "Crimson",
            "hex": "#DC3545",
            "rgb": [
                220,
                53,
                69
            ]
        },
        {
            "name": "Light Sea Green",
            "hex": "#198754",
            "rgb": [
                25,
                135,
                84
            ]
        },
        {
            "name": "Slate Grey",
            "hex": "#5C7292",
            "rgb": [
                92,
                114,
                146
            ]
        },
        {
            "name": "Deep Royal Blue",
            "hex": "#0A58CA",
            "rgb": [
                10,
                88,
                202
            ]
        },
        {
            "name": "Deep Sea Green",
            "hex": "#157347",
            "rgb": [
                21,
                115,
                71
            ]
        },
        {
            "name": "Brown",
            "hex": "#BB2D3B",
            "rgb": [
                187,
                45,
                59
            ]
        },
        {
            "name": "Deep Steel Blue",
            "hex": "#C7D5ED",
            "rgb": [
                199,
                213,
                237
            ]
        },
        {
            "name": "Red",
            "hex": "#FF0000",
            "rgb": [
                255,
                0,
                0
            ]
        },
        {
            "name": "Light Steel Blue",
            "hex": "#CFE2FF",
            "rgb": [
                207,
                226,
                255
            ]
        }
    ],
    "fonts": [
        {
            "name": "futura-pt-bold",
            "stack": "\"futura-pt-bold\"",
            "weights": [
                700
            ],
            "source": "Adobe Fonts"
        },
        {
            "name": "futura-pt",
            "stack": "'futura-pt'",
            "weights": [
                400
            ],
            "source": "Adobe Fonts"
        }
    ]
}

Websites whose lead colour is closest to doi.org’s

Tamino Design

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National Geographic

nationalgeographic.com · 5 hours ago
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Untappd

untappd.com · 1 day ago
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Captured from doi.org on 5 November 2026. SiteStyleGuide isn’t affiliated with or endorsed by doi.org; this guide describes the public website for reference.

doi.orgstyle guide

Title &description

Logo

Favicons

Colour

Balance

Neutrals

White

Black

Cool Near Black

Cool Grey

Colours

Gold

Light Royal Blue

Sky Blue

Crimson

Light Sea Green

Slate Grey

Deep Royal Blue

Deep Sea Green

Brown

Deep Steel Blue

Red

Light Steel Blue

Gradients

futura-pt-bold

Type scale

Sizes in use

Elements

Grid

Notes

Questions

Tokens

Share

Run doi.org?

Similar colours

Tamino Design

ViV MGMT

National Geographic

Untappd

Title &
description