Color

#bb0c38

#bb0c38
hex#bb0c38
rgbrgb(187, 12, 56)
hslhsl(345, 88%, 39%)
oklchoklch(0.506 0.198 17.6)
Closest name: Active Volcano (#bb1133)Relative luminance 0.1111

Colors that go with #bb0c38

Royal Blue, Teal and Amber 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 →

#0cbb8f

#bb0c8f · #bb380c

#38bb0c · #0c38bb

Split-complementary

Open in tool →

#0cbb38 · #0c8fbb

#8fbb0c · #0cbb8f · #380cbb

Contrast

#bb0c38 as textRatioAAAA largeAAAFix
Aaon white
6.52:1passpassfail
  • AAA: use #b10b35 as the text (7.07:1)
Aaon black
3.22:1failpassfail
  • AA: use #e60f45 as the text (4.52:1)
  • AAA: use #f56689 as the text (7.14:1)
  • AA: or shift the background to #d9d9d9 (4.62:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #bb0c38 as the background.

Brands using this color

Fonts for this mood

#bb0c38 reads as warm, vivid, playful. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #bb0c38
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 #bb0c38 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/bb0c38-c49ca1-62cb7e-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