Color

#b0371c

#b0371c
hex#b0371c
rgbrgb(176, 55, 28)
hslhsl(11, 73%, 40%)
oklchoklch(0.512 0.162 33.9)
Closest name: Bloodshed (#ba271a)Relative luminance 0.1205

Colors that go with #b0371c

Royal Blue, Sea Green 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 #b0371c

Tints & shades

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

Harmonies

Complementary

Open in tool →

#1c95b0

#b01c4b · #b0811c

#1cb037 · #371cb0

Split-complementary

Open in tool →

#1cb081 · #1c4bb0

#4bb01c · #1c95b0 · #811cb0

Contrast

#b0371c as textRatioAAAA largeAAAFix
Aaon white
6.16:1passpassfail
  • AAA: use #9f3119 as the text (7.17:1)
Aaon black
3.41:1failpassfail
  • AA: use #d44221 as the text (4.6:1)
  • AAA: use #e6755c as the text (7.06:1)
  • AA: or shift the background to #dedede (4.58:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #b0371c as the background.

Brands using this color

Palettes built around it

Fonts for this mood

#b0371c reads as warm, vivid, playful. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #b0371c
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 #b0371c and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/b0371c-c4a89c-62cbab-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