Color

#b72a35

#b72a35
hex#b72a35
rgbrgb(183, 42, 53)
hslhsl(355, 63%, 44%)
oklchoklch(0.515 0.177 22.3)
Closest name: Active Volcano (#bb1133)Relative luminance 0.1198

Colors that go with #b72a35

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 #b72a35

Tints & shades

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

Harmonies

Complementary

Open in tool →

#2ab7ab

#b72a7c · #b7642a

#35b72a · #2a35b7

Split-complementary

Open in tool →

#2ab764 · #2a7cb7

#7cb72a · #2ab7ab · #642ab7

Contrast

#b72a35 as textRatioAAAA largeAAAFix
Aaon white
6.18:1passpassfail
  • AAA: use #a62630 as the text (7.14:1)
Aaon black
3.4:1failpassfail
  • AA: use #d33c48 as the text (4.51:1)
  • AAA: use #e0767f as the text (7.07:1)
  • AA: or shift the background to #dedede (4.6:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #b72a35 as the background.

Brands using this color

Fonts for this mood

#b72a35 reads as warm, vivid, playful. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #b72a35
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 #b72a35 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/b72a35-c49e9c-62cb8f-2d241f-f1e9ee?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