Color

#bb0c1d

#bb0c1d
hex#bb0c1d
rgbrgb(187, 12, 29)
hslhsl(354, 88%, 39%)
oklchoklch(0.502 0.199 25.7)
Closest name: Bullseye (#b9030a)Relative luminance 0.1092

Colors that go with #bb0c1d

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 →

#0cbba9

#bb0c75 · #bb520c

#1dbb0c · #0c1dbb

Split-complementary

Open in tool →

#0cbb52 · #0c75bb

#75bb0c · #0cbba9 · #520cbb

Contrast

#bb0c1d as textRatioAAAA largeAAAFix
Aaon white
6.6:1passpassfail
  • AAA: use #b10b1c as the text (7.16:1)
Aaon black
3.18:1failpassfail
  • AA: use #eb0f25 as the text (4.63:1)
  • AAA: use #f56674 as the text (7.04:1)
  • AA: or shift the background to #d6d6d6 (4.54:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #bb0c1d as the background.

Brands using this color

Palettes built around it

Fonts for this mood

#bb0c1d reads as warm, vivid, playful. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #bb0c1d
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 #bb0c1d and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/bb0c1d-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