Color

#bb3911

#bb3911
hex#bb3911
rgbrgb(187, 57, 17)
hslhsl(14, 83%, 40%)
oklchoklch(0.533 0.173 35.9)
Closest name: Bolognese (#bb4400)Relative luminance 0.1353

Tints & shades

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

Harmonies

Complementary

Open in tool →

#1193bb

#bb113e · #bb8e11

#11bb39 · #3911bb

Split-complementary

Open in tool →

#11bb8e · #113ebb

#3ebb11 · #1193bb · #8e11bb

Contrast

#bb3911 as textRatioAAAA largeAAAFix
Aaon white
5.67:1passpassfail
  • AAA: use #9f300f as the text (7.23:1)
Aaon black
3.71:1failpassfail
  • AA: use #d74114 as the text (4.66:1)
  • AAA: use #ee7049 as the text (7.05:1)
  • AA: or shift the background to #e6e6e6 (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 #bb3911 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

#bb3911 reads as warm, vivid, playful. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #bb3911
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 #bb3911 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/bb3911-c4aa9c-62cbb1-2d291f-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