Color

#bb0c20

#bb0c20
hex#bb0c20
rgbrgb(187, 12, 32)
hslhsl(353, 88%, 39%)
oklchoklch(0.503 0.199 25)
Closest name: Bullseye (#b9030a)Relative luminance 0.1093

Colors that go with #bb0c20

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 →

#0cbba7

#bb0c78 · #bb4f0c

#20bb0c · #0c20bb

Split-complementary

Open in tool →

#0cbb4f · #0c78bb

#78bb0c · #0cbba7 · #4f0cbb

Contrast

#bb0c20 as textRatioAAAA largeAAAFix
Aaon white
6.59:1passpassfail
  • AAA: use #b10b1f as the text (7.15:1)
Aaon black
3.19:1failpassfail
  • AA: use #eb0f29 as the text (4.63:1)
  • AAA: use #f56676 as the text (7.04:1)
  • AA: or shift the background to #d6d6d6 (4.53:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #bb0c20 as the background.

Brands using this color

Palettes built around it

Fonts for this mood

#bb0c20 reads as warm, vivid, playful. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #bb0c20
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 #bb0c20 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/bb0c20-c49c9c-62cb8c-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