Color

#b13f35

#b13f35
hex#b13f35
rgbrgb(177, 63, 53)
hslhsl(5, 54%, 45%)
oklchoklch(0.526 0.151 28.3)
Closest name: Barbarossa (#a84734)Relative luminance 0.1316

Colors that go with #b13f35

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 #b13f35

Tints & shades

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

Harmonies

Complementary

Open in tool →

#35a6b1

#b13568 · #b17d35

#35b13f · #3f35b1

Split-complementary

Open in tool →

#35b17d · #3568b1

#68b135 · #35a6b1 · #7d35b1

Contrast

#b13f35 as textRatioAAAA largeAAAFix
Aaon white
5.78:1passpassfail
  • AAA: use #99372e as the text (7.14:1)
Aaon black
3.63:1failpassfail
  • AA: use #c74e43 as the text (4.6:1)
  • AAA: use #d67e76 as the text (7.11:1)
  • AA: or shift the background to #e3e3e3 (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 #b13f35 as the background.

Brands using this color

Palettes built around it

Fonts for this mood

#b13f35 reads as warm. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #b13f35
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 #b13f35 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/b13f35-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