Color

#b22010

#b22010
hex#b22010
rgbrgb(178, 32, 16)
hslhsl(6, 84%, 38%)
oklchoklch(0.494 0.183 30.5)
Closest name: firebrick (#b22222)Relative luminance 0.1054

Colors that go with #b22010

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 →

#10a2b2

#b21051 · #b27110

#10b220 · #2010b2

Split-complementary

Open in tool →

#10b271 · #1051b2

#51b210 · #10a2b2 · #7110b2

Contrast

#b22010 as textRatioAAAA largeAAAFix
Aaon white
6.76:1passpassfail
  • AAA: use #a91e0f as the text (7.29:1)
Aaon black
3.11:1failpassfail
  • AA: use #e12814 as the text (4.52:1)
  • AAA: use #f16e5f as the text (7.14:1)
  • AA: or shift the background to #d4d4d4 (4.56:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #b22010 as the background.

Brands using this color

Palettes built around it

Fonts for this mood

#b22010 reads as warm, vivid, playful. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #b22010
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 #b22010 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/b22010-c4a59c-62cba3-2d271f-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