Color

#cf1729

#cf1729
hex#cf1729
rgbrgb(207, 23, 41)
hslhsl(354, 80%, 45%)
oklchoklch(0.546 0.211 24.6)
Closest name: Angry Tomato (#d82029)Relative luminance 0.1404

Colors that go with #cf1729

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 →

#17cfbc

#cf1785 · #cf6017

#29cf17 · #1729cf

Split-complementary

Open in tool →

#17cf60 · #1785cf

#85cf17 · #17cfbc · #6017cf

Contrast

#cf1729 as textRatioAAAA largeAAAFix
Aaon white
5.52:1passpassfail
  • AAA: use #ae1323 as the text (7.2:1)
Aaon black
3.81:1failpassfail
  • AA: use #e6192e as the text (4.54:1)
  • AAA: use #ef6c79 as the text (7.09:1)
  • AA: or shift the background to #e8e8e8 (4.5:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #cf1729 as the background.

Brands using this color

Fonts for this mood

#cf1729 reads as warm, vivid, playful. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #cf1729
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 #cf1729 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/cf1729-c49d9c-62cb8e-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