Color

#b43f27

#b43f27
hex#b43f27
rgbrgb(180, 63, 39)
hslhsl(10, 64%, 43%)
oklchoklch(0.529 0.157 33.4)
Closest name: Rust (#b7410e)Relative luminance 0.134

Colors that go with #b43f27

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 #b43f27

Tints & shades

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

Harmonies

Complementary

Open in tool →

#279cb4

#b42756 · #b48527

#27b43f · #3f27b4

Split-complementary

Open in tool →

#27b485 · #2756b4

#56b427 · #279cb4 · #8527b4

Contrast

#b43f27 as textRatioAAAA largeAAAFix
Aaon white
5.71:1passpassfail
  • AAA: use #9b3622 as the text (7.13:1)
Aaon black
3.68:1failpassfail
  • AA: use #cd482d as the text (4.56:1)
  • AAA: use #de7c68 as the text (7.19:1)
  • AA: or shift the background to #e6e6e6 (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 #b43f27 as the background.

Brands using this color

Palettes built around it

Fonts for this mood

#b43f27 reads as warm, vivid, playful. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #b43f27
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 #b43f27 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/b43f27-c4a79c-62cbaa-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