Color

#c50d13

#c50d13
hex#c50d13
rgbrgb(197, 13, 19)
hslhsl(358, 88%, 41%)
oklchoklch(0.521 0.208 27.9)
Closest name: Blood Kiss (#c30b0a)Relative luminance 0.1221

Colors that go with #c50d13

Charcoal, Royal Blue 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.

Tints & shades

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

Harmonies

Complementary

Open in tool →

#0dc5be

#c50d6f · #c5620d

#13c50d · #0d13c5

Split-complementary

Open in tool →

#0dc562 · #0d6fc5

#6fc50d · #0dc5be · #620dc5

Contrast

#c50d13 as textRatioAAAA largeAAAFix
Aaon white
6.1:1passpassfail
  • AAA: use #b10b11 as the text (7.18:1)
Aaon black
3.44:1failpassfail
  • AA: use #eb0f16 as the text (4.61:1)
  • AAA: use #f66a6f as the text (7.21:1)
  • 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 #c50d13 as the background.

Brands using this color

Fonts for this mood

#c50d13 reads as warm, vivid, playful. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #c50d13
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 #c50d13 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/c50d13-c49f9c-62cb95-2d251f-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