What font does NCI use?

NCI’s website uses three typefaces: Poppins (headings), google Fonts; Open Sans (body text), google Fonts; Roboto Mono, google Fonts.

What are NCI’s brand colours?

The main colours on cancer.gov are Deep Slate Blue (#004971), Deep Steel Blue (#01679D), Light Midnight Blue (#00314B), Steel Blue (#007BBD), Rebecca Purple (#54278F) and Teal (#298085).

What colour is NCI’s text and background?

Body text is #1B1B1B on a #FFFFFF background.

Where is NCI’s logo from?

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

Is this NCI’s official style guide?

No. SiteStyleGuide made it from cancer.gov’s public web pages on 30 October 2026, and isn’t affiliated with NCI. Members can refresh a guide after 90 days to pick up changes.

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

Unofficial style guide

NCIstyle guide

NCI’s website (cancer.gov) sets its headings in Poppins and its body text in Open Sans. Its palette is led by Deep Slate Blue (#004971), Deep Steel Blue (#01679D) and Light Midnight Blue (#00314B), with #1B1B1B text on #FFFFFF. Captured from the live site on 30 October 2026.

Website: cancer.gov
Typefaces: Poppins, Open Sans, Roboto Mono
Palette: 4 neutrals, 12 colours, 2 gradients
Captured: 30 Oct 2026 · added by @sitestyleguide

Save Add to collection Share Report

Screenshot of the cancer.gov homepage on a desktop screen — Screenshot of cancer.gov on a 1440 px desktop screen, 30 Oct 2026.

Screenshot of the cancer.gov 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: Comprehensive Cancer Information - NCI; ● 38 / 60 characters
Meta description: Accurate, up-to-date, comprehensive cancer information from the U.S. government's principal agency for cancer research.; ● 119 / 160 characters
og:title: Comprehensive Cancer Information
og:description: Accurate, up-to-date, comprehensive cancer information from the U.S. government's principal agency for cancer research.
Language: en

In search results

NCIhttps://www.cancer.gov/

Comprehensive Cancer Information - NCI

Accurate, up-to-date, comprehensive cancer information from the U.S. government's principal agency for cancer research.

When shared

cancer.gov

Comprehensive Cancer Information

Accurate, up-to-date, comprehensive cancer information from the U.S. government's principal agency for cancer…

Logo & favicons

Found as: image in the header. SVG, 288 × 38.

Logo

On white

On black

On Deep Slate Blue

Favicons

5 found

512 px · PNG manifest
260 px · SVG icon
192 px · PNG manifest
180 px · PNG apple-touch-icon
48 px · ICO favicon.ico

Comprehensive Cancer Information - NCI

Light browser tab

Comprehensive Cancer Information - NCI

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 (#1B1B1B) and white, using WCAG 2 ratios: 4.5 for body text, 3 for large text.

Colour

Balance

How much each colour is used

White 18.7%
Near Black 16.2%
Deep Slate Blue 10.2%
Deep Steel Blue 9.5%
Light Midnight Blue 8%
Light Off White 6%
Deep Off White 5%
Steel Blue 5%
Rebecca Purple 4.4%
Teal 3.5%
Brown 3.4%
Deep Midnight Blue 2.8%
Dodger Blue 2%
Light Slate Blue 1.9%
Crimson 1.9%
Light Steel Blue 1.6%

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
17.22:1 AAA

On white
—

Text, background, border · nav.nci-header-nav ul.nci-header-nav__primary li.nci-header-nav__primary-item>bu, body
Near Black

HEX

RGB

HSL

OKLCH

CMYK
0 0 0 89

On text
—

On white
17.22:1 AAA

Text, background, border · body, .nci-guide-card__title
Light Off White

HEX

RGB

HSL

OKLCH

CMYK
0 0 0 6

On text
15.11:1 AAA

On white
1.14:1 Fail

Background, text, border · .usa-banner, .usa-alert
Deep Off White

HEX

RGB

HSL

OKLCH

CMYK
1 0 0 11

On text
13.13:1 AAA

On white
1.31:1 Fail

Text, background, border · .usa-button--outline.usa-button--inverse, .usa-button--outline.usa-button--inverse.usa-button--unstyled

Colours

Brand colours and accents, most used first

Deep Slate Blue

HEX

RGB

HSL

OKLCH

CMYK
100 35 0 56

On text
1.80:1 Fail

On white
9.58:1 AAA

Text, background, border · nav.nci-header-nav ul.nci-header-nav__primary li.nci-header-nav__primary-item>a., nav.nci-header-nav ul.nci-header-nav__primary li.nci-header-nav__primary-item>bu
Deep Steel Blue

HEX

RGB

HSL

OKLCH

CMYK
99 34 0 38

On text
2.81:1 Fail

On white
6.13:1 AA

Text, border, background · .usa-prose>div>a:not([class]), .nci-card__title
Light Midnight Blue

HEX

RGB

HSL

OKLCH

CMYK
100 35 0 71

On text
1.26:1 Fail

On white
13.63:1 AAA

Text, background, border · nav.nci-header-nav ul.nci-header-nav__primary li.nci-header-nav__primary-item>a., .usa-button--outline.usa-button--inverse.usa-button--unstyled.usa-button--active
Steel Blue

HEX

RGB

HSL

OKLCH

CMYK
100 35 0 26

On text
3.75:1 AA large

On white
4.60:1 AA

Background, text, border · .usa-button--outline, nav.nci-header-nav ul.nci-header-nav__primary li.nci-header-nav__primary-item>bu
Rebecca Purple

HEX

RGB

HSL

OKLCH

CMYK
41 73 0 44

On text
1.69:1 Fail

On white
10.18:1 AAA

Text · .usa-prose>div>a:not([class]):visited, .nci-card a:visited .nci-card__title
Teal

HEX

RGB

HSL

OKLCH

CMYK
69 4 0 48

On text
3.71:1 AA large

On white
4.65:1 AA

Border, background, text · .usa-banner__inner .usa-banner__language-toggle, .usa-button--secondary
Brown

HEX

RGB

HSL

OKLCH

CMYK
0 93 63 29

On text
2.57:1 Fail

On white
6.71:1 AA

Background, border · .usa-alert--emergency, .usa-site-alert--emergency .usa-alert
Deep Midnight Blue

HEX

RGB

HSL

OKLCH

CMYK
87 51 0 82

On text
1.05:1 Fail

On white
18.10:1 AAA

Background, border · .usa-button--accent-cool.usa-button--active, .usa-section--dark
Dodger Blue

HEX

RGB

HSL

OKLCH

CMYK
86 43 0 0

On text
5.39:1 AA

On white
3.20:1 AA large

Border · .usa-prose>div>a:not([class]):focus, .nci-card__title:focus
Light Slate Blue

HEX

RGB

HSL

OKLCH

CMYK
66 38 0 54

On text
1.89:1 Fail

On white
9.11:1 AAA

Background, border, text · .usa-collection__calendar-date-day, .usa-button--accent-cool.usa-button--hover
Crimson

HEX

RGB

HSL

OKLCH

CMYK
0 93 63 11

On text
3.70:1 AA large

On white
4.66:1 AA

Border, background, text · .usa-footer--nci-big .usa-footer__primary-section .usa-sign-up .usa-form-group ., .usa-label--required
Light Steel Blue

HEX

RGB

HSL

OKLCH

CMYK
51 30 0 33

On text
3.82:1 AA large

On white
4.51:1 AA

Text, background, border · .usa-section--dark h1, .usa-button--accent-cool

Gradients

linear-gradient(transparent,transparent)
linear-gradient(rgba(0,0,0,.6),rgba(0,0,0,.2) 60%,transparent)

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.

Poppins

Aa 300 Aa 600

Poppins

Google Fonts · weights 300, 400, 500, 600 · headings, buttons

Aa 300 Aa 700

Open Sans

Google Fonts · weights 300, 400, 600, 700 · headings, body, buttons

Aa 300 Aa 700

Roboto Mono

Google Fonts · weights 300, 400, 700

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

Type scale

From the site’s CSS

Heading 1 2em · 32 px

NCI

Heading 2 1.56rem · 25 px / 1.2 weight 600 · Poppins

Comprehensive Cancer Information - NCI

Heading 3 1.3rem · 21 px / 1.2 weight 600 · Poppins

Comprehensive Cancer Information - NCI

Heading 4 1.17rem · 19 px / 1.2 weight 600 · Poppins

Comprehensive Cancer Information - NCI

Heading 5 1.04rem · 17 px / 1.2 weight 600 · Poppins

Comprehensive Cancer Information - NCI

Heading 6 1.04rem · 17 px / 1.2 weight 600 · Poppins

Comprehensive Cancer Information - NCI

Paragraph .82rem · 13 px / 1.5 Open Sans

Accurate, up-to-date, comprehensive cancer information from the U.S. government's principal agency for cancer research.

Small 80%

Accurate, up-to-date, comprehensive cancer information from the U.S. government's principal agency for cancer research.

Button 100% / 1.15 none

Get started

Link 1.01rem · 16 px / 1.3 weight 400 · Open Sans

Sizes in use

Most common across the site

25pxline 1.2 · 11 rules
22pxline 1 · 7 rules
21pxline 1.2 · 14 rules
19pxline 1.2 · 9 rules
17pxline 1.2 · 10 rules
16pxline 1.6 · 29 rules
14pxline 1.3 · 11 rules
13pxline 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

nav.nci-header-nav ul.nci-header-nav__primary li.nci-header-nav__primary-item>bu · #004971

Link

Read our latest news today.

a · #01679D

Corner radius

.25rem · 7×
.5rem · 2×
99rem · 1×
2px · 1×

Shadows

0 .25rem .5rem 0 rgba(0,0,0,.3)
0 1px .25rem 0 rgba(0,0,0,.3)
0 .5rem 1rem 0 rgba(0,0,0,.3)
0 .75rem 1.5rem 0 rgba(0,0,0,.3)

Layout

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

Grid

Breakpoints

480

640

880

960

1024

1400

On a scale of 0 to 1440 px.

Content widths (max-width)

1400 px

1024 px

880 px

640 px

480 px

320 px

Notes

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

Notes

● FineThe title is 38 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 NCI use?: NCI’s website uses three typefaces: Poppins (headings), google Fonts; Open Sans (body text), google Fonts; Roboto Mono, google Fonts.
What are NCI’s brand colours?: The main colours on cancer.gov are Deep Slate Blue (#004971), Deep Steel Blue (#01679D), Light Midnight Blue (#00314B), Steel Blue (#007BBD), Rebecca Purple (#54278F) and Teal (#298085).
What colour is NCI’s text and background?: Body text is #1B1B1B on a #FFFFFF background.
Where is NCI’s logo from?: The logo shown in this guide was found on cancer.gov’s homepage. For official logo files and usage rules, check NCI’s own brand or press page.
Is this NCI’s official style guide?: No. SiteStyleGuide made it from cancer.gov’s public web pages on 30 October 2026, and isn’t affiliated with NCI. 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

cancer-gov-tokens.css

Download

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

/* cancer.gov design tokens, from SiteStyleGuide (https://sitestyleguide.com/cancer.gov) */
:root {
  /* Colours */
  --text: #1B1B1B;
  --background: #FFFFFF;
  --colour-white: #FFFFFF;
  --colour-near-black: #1B1B1B;
  --colour-light-off-white: #F0F0F0;
  --colour-deep-off-white: #DFE1E2;
  --colour-deep-slate-blue: #004971;
  --colour-deep-steel-blue: #01679D;
  --colour-light-midnight-blue: #00314B;
  --colour-steel-blue: #007BBD;
  --colour-rebecca-purple: #54278F;
  --colour-teal: #298085;
  --colour-brown: #B60D43;
  --colour-deep-midnight-blue: #06162D;
  --colour-dodger-blue: #2491FF;
  --colour-light-slate-blue: #284976;
  --colour-crimson: #E41154;
  --colour-light-steel-blue: #5478AB;
  --gradient-1: linear-gradient(transparent,transparent);
  --gradient-2: linear-gradient(rgba(0,0,0,.6),rgba(0,0,0,.2) 60%,transparent);

  /* Typefaces */
  --font-headings: 'Poppins', 'Helvetica Neue', 'Helvetica', 'Roboto', 'Arial', sans-serif;
  --font-buttons: 'Poppins', 'Helvetica Neue', 'Helvetica', 'Roboto', 'Arial', sans-serif;
  --font-body: 'Open Sans', -apple-system, blinkmacsystemfont, 'Segoe UI', 'Roboto', 'Helvetica';
  --font-other: 'Roboto Mono';

  /* Type scale */
  --text-h1: 2em;
  --text-h2: 1.56rem;
  --leading-h2: 1.2;
  --text-h3: 1.3rem;
  --leading-h3: 1.2;
  --text-h4: 1.17rem;
  --leading-h4: 1.2;
  --text-h5: 1.04rem;
  --leading-h5: 1.2;
  --text-h6: 1.04rem;
  --leading-h6: 1.2;
  --text-p: .82rem;
  --leading-p: 1.5;
  --text-small: 80%;
  --text-button: 100%;
  --leading-button: 1.15;
  --text-a: 1.01rem;
  --leading-a: 1.3;

  /* Shape */
  --radius-1: .25rem;
  --radius-2: .5rem;
  --radius-3: 99rem;
  --radius-4: 2px;

  /* Layout (breakpoints can’t be used in media queries as variables; they’re here for reference) */
  --breakpoint-1: 480px;
  --breakpoint-2: 640px;
  --breakpoint-3: 880px;
  --breakpoint-4: 960px;
  --breakpoint-5: 1024px;
  --breakpoint-6: 1400px;
  --max-width-1: 1400px;
  --max-width-2: 1024px;
  --max-width-3: 880px;
  --max-width-4: 640px;
  --max-width-5: 480px;
  --max-width-6: 320px;
}

{
    "site": "cancer.gov",
    "source": "https://sitestyleguide.com/cancer.gov",
    "text": "#1B1B1B",
    "background": "#FFFFFF",
    "colours": [
        {
            "name": "White",
            "hex": "#FFFFFF",
            "rgb": [
                255,
                255,
                255
            ]
        },
        {
            "name": "Near Black",
            "hex": "#1B1B1B",
            "rgb": [
                27,
                27,
                27
            ]
        },
        {
            "name": "Light Off White",
            "hex": "#F0F0F0",
            "rgb": [
                240,
                240,
                240
            ]
        },
        {
            "name": "Deep Off White",
            "hex": "#DFE1E2",
            "rgb": [
                223,
                225,
                226
            ]
        },
        {
            "name": "Deep Slate Blue",
            "hex": "#004971",
            "rgb": [
                0,
                73,
                113
            ]
        },
        {
            "name": "Deep Steel Blue",
            "hex": "#01679D",
            "rgb": [
                1,
                103,
                157
            ]
        },
        {
            "name": "Light Midnight Blue",
            "hex": "#00314B",
            "rgb": [
                0,
                49,
                75
            ]
        },
        {
            "name": "Steel Blue",
            "hex": "#007BBD",
            "rgb": [
                0,
                123,
                189
            ]
        },
        {
            "name": "Rebecca Purple",
            "hex": "#54278F",
            "rgb": [
                84,
                39,
                143
            ]
        },
        {
            "name": "Teal",
            "hex": "#298085",
            "rgb": [
                41,
                128,
                133
            ]
        },
        {
            "name": "Brown",
            "hex": "#B60D43",
            "rgb": [
                182,
                13,
                67
            ]
        },
        {
            "name": "Deep Midnight Blue",
            "hex": "#06162D",
            "rgb": [
                6,
                22,
                45
            ]
        },
        {
            "name": "Dodger Blue",
            "hex": "#2491FF",
            "rgb": [
                36,
                145,
                255
            ]
        },
        {
            "name": "Light Slate Blue",
            "hex": "#284976",
            "rgb": [
                40,
                73,
                118
            ]
        },
        {
            "name": "Crimson",
            "hex": "#E41154",
            "rgb": [
                228,
                17,
                84
            ]
        },
        {
            "name": "Light Steel Blue",
            "hex": "#5478AB",
            "rgb": [
                84,
                120,
                171
            ]
        }
    ],
    "fonts": [
        {
            "name": "Poppins",
            "stack": "Poppins, Helvetica Neue, Helvetica, Roboto, Arial, sans-serif",
            "weights": [
                300,
                400,
                500,
                600
            ],
            "source": "Google Fonts"
        },
        {
            "name": "Open Sans",
            "stack": "Open Sans, -apple-system, BlinkMacSystemFont, Segoe UI, Roboto, Helvetica, Arial, sans-serif, Apple Color Emoji, Segoe UI Emoji, Segoe UI Symbol",
            "weights": [
                300,
                400,
                600,
                700
            ],
            "source": "Google Fonts"
        },
        {
            "name": "Roboto Mono",
            "stack": "'Roboto Mono'",
            "weights": [
                300,
                400,
                700
            ],
            "source": "Google Fonts"
        }
    ]
}

Other websites using Poppins as their main typeface

SiteGround

siteground.com · set in Poppins
Save
BuildYourBzns

buildyourbzns.com · set in Poppins
Save
CDC

cdc.gov · set in Poppins
Save
Universidad Martín Lutero

uml.edu.ni · set in Poppins
Save

Websites whose lead colour is closest to NCI’s

Statcounter

statcounter.com · 5 days ago
Save
Das Örtliche

dasoertliche.de · 4 days ago
Save
histats.com

histats.com · 6 days ago
Save
VMware by Broadcom

vmware.com · 2 days ago
Save

Captured from cancer.gov on 30 October 2026. SiteStyleGuide isn’t affiliated with or endorsed by NCI; this guide describes the public website for reference.

NCIstyle guide

Title &description

Logo

Favicons

Colour

Balance

Neutrals

White

Near Black

Light Off White

Deep Off White

Colours

Deep Slate Blue

Deep Steel Blue

Light Midnight Blue

Steel Blue

Rebecca Purple

Teal

Brown

Deep Midnight Blue

Dodger Blue

Light Slate Blue

Crimson

Light Steel Blue

Gradients

Poppins

Type scale

Sizes in use

Elements

Grid

Notes

Questions

Tokens

Share

Run cancer.gov?

Also set in Poppins

SiteGround

BuildYourBzns

CDC

Universidad Martín Lutero

Similar colours

Statcounter

Das Örtliche

histats.com

VMware by Broadcom

Title &
description