Color

#bb0c3b

#bb0c3b
hex#bb0c3b
rgbrgb(187, 12, 59)
hslhsl(344, 88%, 39%)
oklchoklch(0.506 0.198 16.5)
Closest name: Active Volcano (#bb1133)Relative luminance 0.1114

Colors that go with #bb0c3b

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 →

#0cbb8c

#bb0c92 · #bb350c

#3bbb0c · #0c3bbb

Split-complementary

Open in tool →

#0cbb35 · #0c92bb

#92bb0c · #0cbb8c · #350cbb

Contrast

#bb0c3b as textRatioAAAA largeAAAFix
Aaon white
6.5:1passpassfail
  • AAA: use #b10b38 as the text (7.06:1)
Aaon black
3.23:1failpassfail
  • AA: use #e60f48 as the text (4.53:1)
  • AAA: use #f5668c as the text (7.16:1)
  • AA: or shift the background to #d9d9d9 (4.61:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #bb0c3b as the background.

Brands using this color

Fonts for this mood

#bb0c3b reads as warm, vivid, playful. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #bb0c3b
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 #bb0c3b and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/bb0c3b-c49ca2-62cb7c-2d221f-f1e9ef?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