Color

#b03227

#b03227
hex#b03227
rgbrgb(176, 50, 39)
hslhsl(5, 64%, 42%)
oklchoklch(0.508 0.164 29.1)
Closest name: firebrick (#b22222)Relative luminance 0.1166

Colors that go with #b03227

Royal Blue, Sea Green and Steel Blue 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 #b03227

Tints & shades

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

Harmonies

Complementary

Open in tool →

#27a4b0

#b02760 · #b07727

#27b032 · #3227b0

Split-complementary

Open in tool →

#27b077 · #2760b0

#60b027 · #27a4b0 · #7727b0

Contrast

#b03227 as textRatioAAAA largeAAAFix
Aaon white
6.3:1passpassfail
  • AAA: use #a32e24 as the text (7.06:1)
Aaon black
3.33:1failpassfail
  • AA: use #d34336 as the text (4.63:1)
  • AAA: use #e07a71 as the text (7.19:1)
  • AA: or shift the background to #dbdbdb (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 #b03227 as the background.

Brands using this color

Palettes built around it

Fonts for this mood

#b03227 reads as warm, vivid, playful. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #b03227
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 #b03227 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/b03227-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