Color

#bf181d

#bf181d
hex#bf181d
rgbrgb(191, 24, 29)
hslhsl(358, 78%, 42%)
oklchoklch(0.515 0.198 26.9)
Closest name: Blood Kiss (#c30b0a)Relative luminance 0.1182

Colors that go with #bf181d

Royal Blue, Steel Blue and Teal 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 →

#18bfb9

#bf1871 · #bf6618

#1dbf18 · #181dbf

Split-complementary

Open in tool →

#18bf66 · #1871bf

#71bf18 · #18bfb9 · #6618bf

Contrast

#bf181d as textRatioAAAA largeAAAFix
Aaon white
6.24:1passpassfail
  • AAA: use #ac151a as the text (7.3:1)
Aaon black
3.36:1failpassfail
  • AA: use #e42127 as the text (4.55:1)
  • AAA: use #ed6e72 as the text (7.07:1)
  • AA: or shift the background to #dbdbdb (4.51:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #bf181d as the background.

Brands using this color

Palettes built around it

Fonts for this mood

#bf181d reads as warm, vivid, playful. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #bf181d
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 #bf181d and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/bf181d-c49f9c-62cb95-2d251f-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