Color

#b52c2e

#b52c2e
hex#b52c2e
rgbrgb(181, 44, 46)
hslhsl(359, 61%, 44%)
oklchoklch(0.512 0.174 25.2)
Closest name: firebrick (#b22222)Relative luminance 0.1182

Colors that go with #b52c2e

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 #b52c2e

Tints & shades

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

Harmonies

Complementary

Open in tool →

#2cb5b2

#b52c72 · #b56e2c

#2eb52c · #2c2eb5

Split-complementary

Open in tool →

#2cb56e · #2c72b5

#72b52c · #2cb5b2 · #6e2cb5

Contrast

#b52c2e as textRatioAAAA largeAAAFix
Aaon white
6.24:1passpassfail
  • AAA: use #a4282a as the text (7.2:1)
Aaon black
3.36:1failpassfail
  • AA: use #d14245 as the text (4.58:1)
  • AAA: use #de7879 as the text (7.07:1)
  • AA: or shift the background to #dbdbdb (4.51:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #b52c2e as the background.

Brands using this color

Palettes built around it

Fonts for this mood

#b52c2e reads as warm, vivid, playful. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #b52c2e
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 #b52c2e and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/b52c2e-c4a09c-62cb96-2d251f-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