Color

#cf172c

#cf172c
hex#cf172c
rgbrgb(207, 23, 44)
hslhsl(353, 80%, 45%)
oklchoklch(0.546 0.211 23.8)
Closest name: Angry Tomato (#d82029)Relative luminance 0.1406

Colors that go with #cf172c

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 →

#17cfb9

#cf1788 · #cf5d17

#2ccf17 · #172ccf

Split-complementary

Open in tool →

#17cf5d · #1788cf

#88cf17 · #17cfb9 · #5d17cf

Contrast

#cf172c as textRatioAAAA largeAAAFix
Aaon white
5.51:1passpassfail
  • AAA: use #ae1325 as the text (7.19:1)
Aaon black
3.81:1failpassfail
  • AA: use #e61931 as the text (4.55:1)
  • AAA: use #ef6c7b as the text (7.1:1)
  • AA: or shift the background to #ebebeb (4.62:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #cf172c as the background.

Brands using this color

Fonts for this mood

#cf172c reads as warm, vivid, playful. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #cf172c
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 #cf172c and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/cf172c-c49c9c-62cb8c-2d241f-f1e9ee?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