Color

#b73f24

#b73f24
hex#b73f24
rgbrgb(183, 63, 36)
hslhsl(11, 67%, 43%)
oklchoklch(0.534 0.16 34.1)
Closest name: Rust (#b7410e)Relative luminance 0.1375

Colors that go with #b73f24

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 #b73f24

Tints & shades

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

Harmonies

Complementary

Open in tool →

#249cb7

#b72453 · #b78924

#24b73f · #3f24b7

Split-complementary

Open in tool →

#24b789 · #2453b7

#53b724 · #249cb7 · #8924b7

Contrast

#b73f24 as textRatioAAAA largeAAAFix
Aaon white
5.6:1passpassfail
  • AAA: use #99351e as the text (7.29:1)
Aaon black
3.75:1failpassfail
  • AA: use #d14829 as the text (4.67:1)
  • AAA: use #e07961 as the text (7.08:1)
  • AA: or shift the background to #e8e8e8 (4.57:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #b73f24 as the background.

Brands using this color

Palettes built around it

Fonts for this mood

#b73f24 reads as warm, vivid, playful. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #b73f24
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 #b73f24 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/b73f24-c4a89c-62cbab-2d281f-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