Color

#b22e37

#b22e37
hex#b22e37
rgbrgb(178, 46, 55)
hslhsl(356, 59%, 44%)
oklchoklch(0.51 0.168 22.1)
Closest name: firebrick (#b22222)Relative luminance 0.1169

Colors that go with #b22e37

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.

Real palettes that use #b22e37

Tints & shades

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

Harmonies

Complementary

Open in tool →

#2eb2aa

#b22e79 · #b2672e

#37b22e · #2e37b2

Split-complementary

Open in tool →

#2eb267 · #2e79b2

#79b22e · #2eb2aa · #672eb2

Contrast

#b22e37 as textRatioAAAA largeAAAFix
Aaon white
6.29:1passpassfail
  • AAA: use #a22a32 as the text (7.21:1)
Aaon black
3.34:1failpassfail
  • AA: use #cf444e as the text (4.59:1)
  • AAA: use #dc7980 as the text (7.09:1)
  • AA: or shift the background to #dbdbdb (4.54:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #b22e37 as the background.

Brands using this color

Palettes built around it

Fonts for this mood

#b22e37 reads as warm. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #b22e37
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 #b22e37 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/b22e37-c49e9c-62cb91-2d241f-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