Color

#bb4111

#bb4111
hex#bb4111
rgbrgb(187, 65, 17)
hslhsl(17, 83%, 40%)
oklchoklch(0.542 0.166 38.6)
Closest name: Rust (#b7410e)Relative luminance 0.1439

Colors that go with #bb4111

Royal Blue, Sea Green and Steel Blue 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.

Real palettes that use #bb4111

Tints & shades

Every swatch is its own page — click any to analyze it.

Harmonies

Complementary

Open in tool →

#118bbb

#bb1136 · #bb9611

#11bb41 · #4111bb

Split-complementary

Open in tool →

#11bb96 · #1136bb

#36bb11 · #118bbb · #9611bb

Contrast

#bb4111 as textRatioAAAA largeAAAFix
Aaon white
5.42:1passpassfail
  • AAA: use #9a360e as the text (7.22:1)
Aaon black
3.88:1failpassfail
  • AA: use #cd4813 as the text (4.53:1)
  • AAA: use #ed7140 as the text (7.04:1)
  • AA: or shift the background to #ebebeb (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 #bb4111 as the background.

Brands using this color

Palettes built around it

Fonts for this mood

#bb4111 reads as warm, vivid, playful. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #bb4111
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 #bb4111 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/bb4111-c4ac9c-62cbb6-2d291f-f1e9eb?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