Color

#c01b2f

#c01b2f
hex#c01b2f
rgbrgb(192, 27, 47)
hslhsl(353, 75%, 43%)
oklchoklch(0.52 0.196 22.5)
Closest name: Active Volcano (#bb1133)Relative luminance 0.122

Colors that go with #c01b2f

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 →

#1bc0ad

#c01b81 · #c05a1b

#2fc01b · #1b2fc0

Split-complementary

Open in tool →

#1bc05a · #1b81c0

#81c01b · #1bc0ad · #5a1bc0

Contrast

#c01b2f as textRatioAAAA largeAAAFix
Aaon white
6.11:1passpassfail
  • AAA: use #ae192a as the text (7.07:1)
Aaon black
3.44:1failpassfail
  • AA: use #e0293e as the text (4.56:1)
  • AAA: use #eb707e as the text (7.15:1)
  • AA: or shift the background to #dedede (4.54:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #c01b2f as the background.

Brands using this color

Palettes built around it

Fonts for this mood

#c01b2f reads as warm, vivid, playful. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #c01b2f
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 #c01b2f and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/c01b2f-c49c9c-62cb8c-2d241f-f1e9ee?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