Color

#b42e27

#b42e27
hex#b42e27
rgbrgb(180, 46, 39)
hslhsl(3, 64%, 43%)
oklchoklch(0.511 0.172 28)
Closest name: Bloodshed (#ba271a)Relative luminance 0.118

Colors that go with #b42e27

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 #b42e27

Tints & shades

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

Harmonies

Complementary

Open in tool →

#27adb4

#b42767 · #b47527

#27b42e · #2e27b4

Split-complementary

Open in tool →

#27b475 · #2767b4

#67b427 · #27adb4 · #7527b4

Contrast

#b42e27 as textRatioAAAA largeAAAFix
Aaon white
6.25:1passpassfail
  • AAA: use #a32a24 as the text (7.21:1)
Aaon black
3.36:1failpassfail
  • AA: use #d33e36 as the text (4.51:1)
  • AAA: use #e17a75 as the text (7.24:1)
  • AA: or shift the background to #dbdbdb (4.51:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #b42e27 as the background.

Brands using this color

Palettes built around it

Fonts for this mood

#b42e27 reads as warm, vivid, playful. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #b42e27
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 #b42e27 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/b42e27-c4a39c-62cb9d-2d261f-f1e9ed?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