Color

#bc0b0b

#bc0b0b
hex#bc0b0b
rgbrgb(188, 11, 11)
hslhsl(0, 89%, 39%)
oklchoklch(0.503 0.201 28.7)
Closest name: Bloody Mary (#ba0105)Relative luminance 0.1095

Colors that go with #bc0b0b

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 →

#0bbcbc

#bc0b63 · #bc630b

#0bbc0b · #0b0bbc

Split-complementary

Open in tool →

#0bbc63 · #0b63bc

#63bc0b · #0bbcbc · #630bbc

Contrast

#bc0b0b as textRatioAAAA largeAAAFix
Aaon white
6.58:1passpassfail
  • AAA: use #b20a0a as the text (7.14:1)
Aaon black
3.19:1failpassfail
  • AA: use #ec0e0e as the text (4.64:1)
  • AAA: use #f66a6a as the text (7.19:1)
  • 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 #bc0b0b as the background.

Brands using this color

Palettes built around it

Fonts for this mood

#bc0b0b reads as warm, vivid, playful. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #bc0b0b
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 #bc0b0b and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/bc0b0b-c4a19c-62cb98-2d251f-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