Color

#b22430

#b22430
hex#b22430
rgbrgb(178, 36, 48)
hslhsl(355, 66%, 42%)
oklchoklch(0.5 0.177 22.6)
Closest name: firebrick (#b22222)Relative luminance 0.1094

Colors that go with #b22430

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 →

#24b2a6

#b22477 · #b25f24

#30b224 · #2430b2

Split-complementary

Open in tool →

#24b25f · #2477b2

#77b224 · #24b2a6 · #5f24b2

Contrast

#b22430 as textRatioAAAA largeAAAFix
Aaon white
6.59:1passpassfail
  • AAA: use #a9232e as the text (7.08:1)
Aaon black
3.19:1failpassfail
  • AA: use #d63845 as the text (4.51:1)
  • AAA: use #e37881 as the text (7.27:1)
  • AA: or shift the background to #d6d6d6 (4.53:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #b22430 as the background.

Brands using this color

Fonts for this mood

#b22430 reads as warm, vivid, playful. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #b22430
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 #b22430 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/b22430-c49e9c-62cb8f-2d241f-f1e9ee?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