Color

#b23e2a

#b23e2a
hex#b23e2a
rgbrgb(178, 62, 42)
hslhsl(9, 62%, 43%)
oklchoklch(0.525 0.155 32.1)
Closest name: Barbarossa (#a84734)Relative luminance 0.1308

Colors that go with #b23e2a

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 #b23e2a

Tints & shades

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

Harmonies

Complementary

Open in tool →

#2a9db2

#b22a59 · #b2822a

#2ab23e · #3e2ab2

Split-complementary

Open in tool →

#2ab282 · #2a59b2

#59b22a · #2a9db2 · #822ab2

Contrast

#b23e2a as textRatioAAAA largeAAAFix
Aaon white
5.81:1passpassfail
  • AAA: use #993524 as the text (7.27:1)
Aaon black
3.62:1failpassfail
  • AA: use #cf4830 as the text (4.62:1)
  • AAA: use #dc7b6a as the text (7.08:1)
  • AA: or shift the background to #e3e3e3 (4.53:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #b23e2a as the background.

Brands using this color

Palettes built around it

Fonts for this mood

#b23e2a reads as warm, vivid, playful. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #b23e2a
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 #b23e2a and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/b23e2a-c4a79c-62cba8-2d271f-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