Color

#b0211c

#b0211c
hex#b0211c
rgbrgb(176, 33, 28)
hslhsl(2, 73%, 40%)
oklchoklch(0.492 0.179 28.2)
Closest name: firebrick (#b22222)Relative luminance 0.104

Colors that go with #b0211c

Royal Blue, Steel Blue 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.

Tints & shades

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

Harmonies

Complementary

Open in tool →

#1cabb0

#b01c61 · #b06b1c

#1cb021 · #211cb0

Split-complementary

Open in tool →

#1cb06b · #1c61b0

#61b01c · #1cabb0 · #6b1cb0

Contrast

#b0211c as textRatioAAAA largeAAAFix
Aaon white
6.82:1passpassfail
  • AAA: use #ac201b as the text (7.06:1)
Aaon black
3.08:1failpassfail
  • AA: use #de312b as the text (4.58:1)
  • AAA: use #e8726d as the text (7.06:1)
  • AA: or shift the background to #d4d4d4 (4.6:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #b0211c as the background.

Brands using this color

Palettes built around it

Fonts for this mood

#b0211c reads as warm, vivid, playful. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #b0211c
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 #b0211c and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/b0211c-c4a29c-62cb9c-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