Color

#b4401d

#b4401d
hex#b4401d
rgbrgb(180, 64, 29)
hslhsl(14, 72%, 41%)
oklchoklch(0.53 0.158 36.6)
Closest name: Rust (#b7410e)Relative luminance 0.1346

Colors that go with #b4401d

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 #b4401d

Tints & shades

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

Harmonies

Complementary

Open in tool →

#1d91b4

#b41d45 · #b48c1d

#1db440 · #401db4

Split-complementary

Open in tool →

#1db48c · #1d45b4

#45b41d · #1d91b4 · #8c1db4

Contrast

#b4401d as textRatioAAAA largeAAAFix
Aaon white
5.69:1passpassfail
  • AAA: use #9a3719 as the text (7.16:1)
Aaon black
3.69:1failpassfail
  • AA: use #ce4a22 as the text (4.63:1)
  • AAA: use #e47958 as the text (7.17:1)
  • AA: or shift the background to #e6e6e6 (4.56:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #b4401d as the background.

Brands using this color

Palettes built around it

Fonts for this mood

#b4401d reads as warm, vivid, playful. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #b4401d
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 #b4401d and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/b4401d-c4aa9c-62cbb1-2d291f-f1e9eb?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