Color

#b2302e

#b2302e
hex#b2302e
rgbrgb(178, 48, 46)
hslhsl(1, 59%, 44%)
oklchoklch(0.51 0.167 26.1)
Closest name: firebrick (#b22222)Relative luminance 0.1178

Colors that go with #b2302e

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 #b2302e

Tints & shades

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

Harmonies

Complementary

Open in tool →

#2eb0b2

#b22e6e · #b2722e

#2eb230 · #302eb2

Split-complementary

Open in tool →

#2eb272 · #2e6eb2

#6eb22e · #2eb0b2 · #722eb2

Contrast

#b2302e as textRatioAAAA largeAAAFix
Aaon white
6.26:1passpassfail
  • AAA: use #a22c2a as the text (7.17:1)
Aaon black
3.36:1failpassfail
  • AA: use #ce4340 as the text (4.5:1)
  • AAA: use #dc7b79 as the text (7.15:1)
  • AA: or shift the background to #dbdbdb (4.52:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #b2302e as the background.

Brands using this color

Palettes built around it

Fonts for this mood

#b2302e reads as warm. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #b2302e
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 #b2302e and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/b2302e-c4a19c-62cb9a-2d261f-f1e9ed?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