Color

#b7331f

#b7331f
hex#b7331f
rgbrgb(183, 51, 31)
hslhsl(8, 71%, 42%)
oklchoklch(0.52 0.172 31.6)
Closest name: Bloodshed (#ba271a)Relative luminance 0.1253

Tints & shades

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

Harmonies

Complementary

Open in tool →

#1fa3b7

#b71f57 · #b77f1f

#1fb733 · #331fb7

Split-complementary

Open in tool →

#1fb77f · #1f57b7

#57b71f · #1fa3b7 · #7f1fb7

Contrast

#b7331f as textRatioAAAA largeAAAFix
Aaon white
5.99:1passpassfail
  • AAA: use #a12d1b as the text (7.22:1)
Aaon black
3.51:1failpassfail
  • AA: use #d63c24 as the text (4.53:1)
  • AAA: use #e57766 as the text (7.16:1)
  • AA: or shift the background to #e0e0e0 (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 #b7331f as the background.

Brands using this color

Palettes built around it

Fonts for this mood

#b7331f reads as warm, vivid, playful. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #b7331f
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 #b7331f and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/b7331f-c4a69c-62cba6-2d271f-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