Color

#bf1303

#bf1303
hex#bf1303
rgbrgb(191, 19, 3)
hslhsl(5, 97%, 38%)
oklchoklch(0.511 0.202 30.2)
Closest name: Blood Kiss (#c30b0a)Relative luminance 0.1155

Colors that go with #bf1303

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 →

#03afbf

#bf0351 · #bf7103

#03bf13 · #1303bf

Split-complementary

Open in tool →

#03bf71 · #0351bf

#51bf03 · #03afbf · #7103bf

Contrast

#bf1303 as textRatioAAAA largeAAAFix
Aaon white
6.34:1passpassfail
  • AAA: use #b01103 as the text (7.17:1)
Aaon black
3.31:1failpassfail
  • AA: use #e71604 as the text (4.51:1)
  • AAA: use #fc6254 as the text (7.01:1)
  • AA: or shift the background to #dbdbdb (4.58:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #bf1303 as the background.

Brands using this color

Palettes built around it

Fonts for this mood

#bf1303 reads as warm, vivid, playful. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #bf1303
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 #bf1303 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/bf1303-c4a49c-62cba1-2d261f-f1e9ec?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