Color

#b42013

#b42013
hex#b42013
rgbrgb(180, 32, 19)
hslhsl(5, 81%, 39%)
oklchoklch(0.498 0.184 29.9)
Closest name: firebrick (#b22222)Relative luminance 0.1078

Colors that go with #b42013

Royal Blue, Steel Blue and Teal 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 →

#13a7b4

#b41356 · #b47113

#13b420 · #2013b4

Split-complementary

Open in tool →

#13b471 · #1356b4

#56b413 · #13a7b4 · #7113b4

Contrast

#b42013 as textRatioAAAA largeAAAFix
Aaon white
6.65:1passpassfail
  • AAA: use #ab1f12 as the text (7.15:1)
Aaon black
3.16:1failpassfail
  • AA: use #e22918 as the text (4.56:1)
  • AAA: use #ef6e62 as the text (7.08:1)
  • AA: or shift the background to #d6d6d6 (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 #b42013 as the background.

Brands using this color

Palettes built around it

Fonts for this mood

#b42013 reads as warm, vivid, playful. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #b42013
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 #b42013 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/b42013-c4a49c-62cba1-2d261f-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