Color

#cf171a

#cf171a
hex#cf171a
rgbrgb(207, 23, 26)
hslhsl(359, 80%, 45%)
oklchoklch(0.544 0.212 27.7)
Closest name: Angry Tomato (#d82029)Relative luminance 0.1395

Colors that go with #cf171a

Charcoal, Royal Blue and Steel Blue lead the list. Each partner is a real named colour with the reason it works — a wheel relationship, a neutral that carries it, or a pairing lifted from a palette or brand system that actually shipped — and every pair opens in the palette tool.

Tints & shades

Every swatch is its own page — click any to analyze it.

Harmonies

Complementary

Open in tool →

#17cfcb

#cf1776 · #cf7017

#1acf17 · #171acf

Split-complementary

Open in tool →

#17cf70 · #1776cf

#76cf17 · #17cfcb · #7017cf

Contrast

#cf171a as textRatioAAAA largeAAAFix
Aaon white
5.54:1passpassfail
  • AAA: use #ae1316 as the text (7.23:1)
Aaon black
3.79:1failpassfail
  • AA: use #e6191d as the text (4.52:1)
  • AAA: use #ef6c6e as the text (7.04:1)
  • AA: or shift the background to #e8e8e8 (4.52:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #cf171a as the background.

Brands using this color

Fonts for this mood

#cf171a reads as warm, vivid, playful. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #cf171a
live endpoint

Point any MCP client at the shared colors endpoint and your agent gets the same engine as this page — direct_palette, edit_direction, check_palette, check_contrast — read-only, no key. Every direction it proposes comes with a /colors/d/… link: open it, lock what you like, paste the link back, and the agent edits rather than re-rolls.

endpointhttps://mcp.brandsweets.com/colors/mcp
claude mcp add --transport http brandsweets-colors https://mcp.brandsweets.com/colors/mcp
try this prompt

analyze #cf171a and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/cf171a-c4a09c-62cb96-2d251f-f1e9ed?lock=0&style=vibrant

Want the agent to remember your picks and write them into a living brand? Create a free BrandSweets workspace.

Machine-readable: color.md