What websites look like CodePen?

imgix, Convex, Turso, GitHub, Vite have the closest design to CodePen, measured from their live pages: light or dark background, accent color, fonts, corners and headline size.

Websites like codepen.io

Websites like CodePen

CodePen's website is dark (#131417), with Telefon headings over Lato, 90px headlines at weight 400, 6px corners and a green accent (#47CF73). These 12 sites share the most of that look, closest first.

What each site is compared with

CodePen

Background: Dark #131417
Accent: Green #47CF73
Font: Telefon / Lato
Corners: 6px
Headlines: 90px, weight 400

imgix2 of 5 same
Background
Dark #1E1E23
Close
Accent
Green #349169
Close
Font
Circularxxtt
Differs
Corners
8px
Same
Headlines
88px, weight 400
Same
Convex3 of 5 same
Background
Dark #141414
Same
Accent
Yellow #F3B01C
Differs
Font
GT America
Differs
Corners
8px
Same
Headlines
88px, weight 500
Same
Turso2 of 5 same
Background
Dark #0D1318
Same
Accent
Teal #4FF8D2
Differs
Font
Inter
Differs
Corners
8px
Same
Headlines
76px, weight 400
Close
GitHub2 of 5 same
Background
Dark #0D1117
Same
Accent
None, monochrome
Differs
Font
Mona Sans
Differs
Corners
8px
Same
Headlines
64px, weight 425
Differs
Vite2 of 5 same
Background
Dark #16171D
Same
Accent
None, monochrome
Differs
Font
APK Protocol / Inter
Differs
Corners
8px
Same
Headlines
60px, weight 500
Differs
Vitest2 of 5 same
Background
Dark #16171D
Same
Accent
None, monochrome
Differs
Font
APK Protocol / Inter
Differs
Corners
8px
Same
Headlines
60px, weight 500
Differs
Bolt2 of 5 same
Background
Dark #171719
Same
Accent
None, monochrome
Differs
Font
Schibsted Grotesk
Differs
Corners
6px
Same
Headlines
48px, weight 600
Differs
Blizzard2 of 5 same
Background
Blue #131928
Same
Accent
None, monochrome
Differs
Font
Archivo
Differs
Corners
8px
Same
Headlines
48px, weight 600
Differs
Unreal Engine2 of 5 same
Background
Dark #101014
Same
Accent
Blue #26BBFF
Differs
Font
Inter Tight / Inter
Differs
Corners
8px
Same
Headlines
40px, weight 700
Differs
Epic Games2 of 5 same
Background
Dark #101014
Same
Accent
None, monochrome
Differs
Font
Inter
Differs
Corners
8px
Same
Headlines
14px, weight 700
Differs
Railway2 of 5 same
Background
Dark #13111C
Same
Accent
Purple #553F83
Differs
Font
IBM Plex Serif / Inter
Differs
Corners
8px
Same
Headlines
54px, weight 500
Differs
Sourcegraph2 of 5 same
Background
Dark #0E0D0D
Same
Accent
Red #F34E3F
Differs
Font
Poly Sans
Differs
Corners
8px
Same
Headlines
64px, weight 500
Differs

How these are matched

Each of the 475 sites in the design library is compared with CodePen on five things you see at a glance. Background: light or dark, and how close the shade is. Accent: the hue of the color on buttons and links. Font: the same family for headings and body, or one of them. Corners: the typical radius and pill buttons. Headlines: the largest type size and its weight. Same counts most, close counts half. Open any site for its fonts, color codes and a prompt for Claude Code, Cursor, Lovable or v0.

Want CodePen itself? See CodePen's fonts and color codes, or print the full report.

Measured from each site's live page as a browser renders it, CodePen on 25 October 2026. Siteprint is not affiliated with these sites; names and trademarks belong to their owners.