Color

#b42f1d

#b42f1d
hex#b42f1d
rgbrgb(180, 47, 29)
hslhsl(7, 72%, 41%)
oklchoklch(0.511 0.173 31.1)
Closest name: Bloodshed (#ba271a)Relative luminance 0.1183

Colors that go with #b42f1d

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.

Tints & shades

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

Harmonies

Complementary

Open in tool →

#1da2b4

#b41d57 · #b47a1d

#1db42f · #2f1db4

Split-complementary

Open in tool →

#1db47a · #1d57b4

#57b41d · #1da2b4 · #7a1db4

Contrast

#b42f1d as textRatioAAAA largeAAAFix
Aaon white
6.24:1passpassfail
  • AAA: use #a22a1a as the text (7.29:1)
Aaon black
3.37:1failpassfail
  • AA: use #db3924 as the text (4.62:1)
  • AAA: use #e67465 as the text (7.05:1)
  • AA: or shift the background to #dbdbdb (4.51:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #b42f1d as the background.

Brands using this color

Palettes built around it

Fonts for this mood

#b42f1d reads as warm, vivid, playful. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #b42f1d
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 #b42f1d and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/b42f1d-c4a59c-62cba4-2d271f-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