Color

#b43136

#b43136
hex#b43136
rgbrgb(180, 49, 54)
hslhsl(358, 57%, 45%)
oklchoklch(0.516 0.167 23.4)
Closest name: firebrick (#b22222)Relative luminance 0.1217

Colors that go with #b43136

Royal Blue, Teal and Amber 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.

Real palettes that use #b43136

Tints & shades

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

Harmonies

Complementary

Open in tool →

#31b4b0

#b43177 · #b46e31

#36b431 · #3136b4

Split-complementary

Open in tool →

#31b46e · #3177b4

#77b431 · #31b4b0 · #6e31b4

Contrast

#b43136 as textRatioAAAA largeAAAFix
Aaon white
6.12:1passpassfail
Aaon black
3.43:1failpassfail
  • AA: use #cd474b as the text (4.6:1)
  • AAA: use #db7b7e as the text (7.15:1)
  • AA: or shift the background to #dedede (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 #b43136 as the background.

Brands using this color

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

Palettes built around it

Fonts for this mood

#b43136 reads as warm. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #b43136
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 #b43136 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/b43136-c49f9c-62cb95-2d251f-f1e9ed?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