Color

#bb3311

#bb3311
hex#bb3311
rgbrgb(187, 51, 17)
hslhsl(12, 83%, 40%)
oklchoklch(0.526 0.178 34.2)
Closest name: Bloodshed (#ba271a)Relative luminance 0.1297

Tints & shades

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

Harmonies

Complementary

Open in tool →

#1199bb

#bb1144 · #bb8811

#11bb33 · #3311bb

Split-complementary

Open in tool →

#11bb88 · #1144bb

#44bb11 · #1199bb · #8811bb

Contrast

#bb3311 as textRatioAAAA largeAAAFix
Aaon white
5.84:1passpassfail
  • AAA: use #a32d0f as the text (7.14:1)
Aaon black
3.59:1failpassfail
  • AA: use #d73b14 as the text (4.53:1)
  • AAA: use #ef6e4e as the text (7.01:1)
  • AA: or shift the background to #e3e3e3 (4.55:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #bb3311 as the background.

Brands using this color

No public brand in the corpus uses this exact color yet. Extract a brand to add one.

Fonts for this mood

#bb3311 reads as warm, vivid, playful. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #bb3311
live endpoint

Point any MCP client at the shared colors endpoint and your agent gets the same engine as this page — generate_palette, check_contrast, analyze_color — read-only, no key. Every palette it proposes comes with a /palettes/new/… link: open it, lock what you like, paste the link back.

endpointhttps://mcp.brandsweets.com/colors/mcp
claude mcp add --transport http brandsweets-colors https://mcp.brandsweets.com/colors/mcp
try this prompt

analyze #bb3311 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/bb3311-c4a99c-62cbad-2d281f-f1e9ec?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