Color

#c5111d

#c5111d
hex#c5111d
rgbrgb(197, 17, 29)
hslhsl(356, 84%, 42%)
oklchoklch(0.523 0.206 26.4)
Closest name: Blood Kiss (#c30b0a)Relative luminance 0.1236

Colors that go with #c5111d

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 →

#11c5b9

#c51177 · #c55f11

#1dc511 · #111dc5

Split-complementary

Open in tool →

#11c55f · #1177c5

#77c511 · #11c5b9 · #5f11c5

Contrast

#c5111d as textRatioAAAA largeAAAFix
Aaon white
6.05:1passpassfail
  • AAA: use #b2101a as the text (7.04:1)
Aaon black
3.47:1failpassfail
  • AA: use #eb1423 as the text (4.66:1)
  • AAA: use #f26972 as the text (7.04:1)
  • AA: or shift the background to #e0e0e0 (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 #c5111d as the background.

Brands using this color

Palettes built around it

Fonts for this mood

#c5111d reads as warm, vivid, playful. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #c5111d
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 #c5111d and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/c5111d-c49e9c-62cb91-2d241f-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