Color

#b7571f

#b7571f
hex#b7571f
rgbrgb(183, 87, 31)
hslhsl(22, 71%, 42%)
oklchoklch(0.567 0.141 46.8)
Closest name: Bloodhound (#bb5511)Relative luminance 0.1698

Colors that go with #b7571f

Crimson, Royal Blue and Sea Green 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 →

#1f7fb7

#b71f33 · #b7a31f

#1fb757 · #571fb7

Split-complementary

Open in tool →

#1fb7a3 · #1f33b7

#33b71f · #1f7fb7 · #a31fb7

Contrast

#b7571f as textRatioAAAA largeAAAFix
Aaon white
4.78:1passpassfail
  • AAA: use #8c4218 as the text (7.22:1)
Aaon black
4.4:1failpassfail
  • AA: use #bc5920 as the text (4.59:1)
  • AAA: use #df7d43 as the text (7.15:1)
  • AA: or shift the background to #fafafa (4.58:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #b7571f as the background.

Brands using this color

Palettes built around it

Fonts for this mood

#b7571f reads as warm, vivid, playful. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #b7571f
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 #b7571f and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/b7571f-c4af9c-62cbbf-2d2a1f-f1e9ea?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