What websites look like FastAPI?

DeepL, Supabase, Siemens, Fathom, Django have the closest design to FastAPI, measured from their live pages: light or dark background, accent color, fonts, corners and headline size.

Websites like fastapi.tiangolo.com

Websites like FastAPI

FastAPI's website is light (#FFFFFF), with Roboto, 42px headlines at weight 600, 20px corners and a teal accent (#009485). These 12 sites share the most of that look, closest first.

What each site is compared with

FastAPI

Background: Light #FFFFFF
Accent: Teal #009485
Font: Roboto
Corners: 20px
Headlines: 42px, weight 600

DeepL3 of 5 same
Background
Light #F5F5F5
Same
Accent
Blue #0F2B46
Differs
Font
Roboto
Same
Corners
20px
Same
Headlines
48px, weight 300
Differs
Supabase2 of 5 same
Background
Light #FDFDFD
Same
Accent
Green #0E7E4E
Close
Font
Manrope / Inter
Differs
Corners
15px
Close
Headlines
46px, weight 500
Same
Siemens3 of 5 same
Background
Light #FFFFFF
Same
Accent
Teal #00CCCC
Same
Font
Siemens Sans
Differs
Corners
20px
Same
Headlines
18px, weight 700
Differs
Fathom3 of 5 same
Background
Light #FFFFFF
Same
Accent
Teal #49BEA7
Same
Font
Lausanne
Differs
Corners
5px, pill buttons
Differs
Headlines
46px, weight 500
Same
Django2 of 5 same
Background
Light #F8F8F8
Same
Accent
Green #44B78B
Close
Font
Roboto
Same
Corners
5px
Differs
Headlines
36px, weight 300
Differs
Netlify2 of 5 same
Background
Light #FFFFFF
Same
Accent
Teal #32E6E2
Same
Font
Figtree
Differs
Corners
20px, pill buttons
Close
Headlines
64px, weight 800
Differs
Smartsheet2 of 5 same
Background
Light #FFFFFF
Same
Accent
Teal #10826A
Same
Font
TT Norms
Differs
Corners
24px
Close
Headlines
58px, weight 600
Differs
Glovo2 of 5 same
Background
Light #FFFFFF
Same
Accent
Teal #035949
Same
Font
Glovo Sans
Differs
Corners
10px, pill buttons
Differs
Headlines
48px, weight 700
Close
Logitech2 of 5 same
Background
Light #FFFFFF
Same
Accent
Teal #00FDCF
Same
Font
Brown
Differs
Corners
16px, pill buttons
Close
Headlines
24px, weight 700
Differs
Cypress2 of 5 same
Background
Light #FFFFFF
Same
Accent
Teal #007780
Same
Font
Poppins
Differs
Corners
8px, pill buttons
Differs
Headlines
48px, weight 700
Close
Creative Market2 of 5 same
Background
Light #FFFFFF
Same
Accent
Teal #088178
Same
Font
Averta
Differs
Corners
14px
Close
Headlines
24px, weight 600
Differs
Chakra UI2 of 5 same
Background
Light #FFFFFF
Same
Accent
Teal #0D9488
Same
Font
Wix Madefor Text
Differs
Corners
6px
Differs
Headlines
48px, weight 600
Close

How these are matched

Each of the 475 sites in the design library is compared with FastAPI 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 FastAPI itself? See FastAPI's fonts and color codes, or print the full report.

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