Color

#b43d27

#b43d27
hex#b43d27
rgbrgb(180, 61, 39)
hslhsl(9, 64%, 43%)
oklchoklch(0.527 0.159 32.6)
Closest name: Rust (#b7410e)Relative luminance 0.1319

Colors that go with #b43d27

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 #b43d27

Tints & shades

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

Harmonies

Complementary

Open in tool →

#279fb4

#b42759 · #b48327

#27b43d · #3d27b4

Split-complementary

Open in tool →

#27b483 · #2759b4

#59b427 · #279fb4 · #8327b4

Contrast

#b43d27 as textRatioAAAA largeAAAFix
Aaon white
5.77:1passpassfail
  • AAA: use #9b3422 as the text (7.22:1)
Aaon black
3.64:1failpassfail
  • AA: use #d1462e as the text (4.63:1)
  • AAA: use #de7a68 as the text (7.09:1)
  • AA: or shift the background to #e6e6e6 (4.63:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #b43d27 as the background.

Brands using this color

Palettes built around it

Fonts for this mood

#b43d27 reads as warm, vivid, playful. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #b43d27
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 #b43d27 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/b43d27-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