Color

#bf0903

#bf0903
hex#bf0903
rgbrgb(191, 9, 3)
hslhsl(2, 97%, 38%)
oklchoklch(0.508 0.205 29.4)
Closest name: Blood Kiss (#c30b0a)Relative luminance 0.1128

Colors that go with #bf0903

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 →

#03b9bf

#bf035b · #bf6703

#03bf09 · #0903bf

Split-complementary

Open in tool →

#03bf67 · #035bbf

#5bbf03 · #03b9bf · #6703bf

Contrast

#bf0903 as textRatioAAAA largeAAAFix
Aaon white
6.45:1passpassfail
  • AAA: use #b00803 as the text (7.29:1)
Aaon black
3.26:1failpassfail
  • AA: use #ec0b04 as the text (4.62:1)
  • AAA: use #fd645e as the text (7.16:1)
  • AA: or shift the background to #d9d9d9 (4.57:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #bf0903 as the background.

Brands using this color

Palettes built around it

Fonts for this mood

#bf0903 reads as warm, vivid, playful. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #bf0903
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 #bf0903 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/bf0903-c4a29c-62cb9c-2d261f-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