Color

#c13310

#c13310
hex#c13310
rgbrgb(193, 51, 16)
hslhsl(12, 85%, 41%)
oklchoklch(0.537 0.184 34)
Closest name: Bloodshed (#ba271a)Relative luminance 0.1374

Colors that go with #c13310

Charcoal, Royal Blue and Sea Green 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 #c13310

Tints & shades

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

Harmonies

Complementary

Open in tool →

#109ec1

#c11045 · #c18c10

#10c133 · #3310c1

Split-complementary

Open in tool →

#10c18c · #1045c1

#45c110 · #109ec1 · #8c10c1

Contrast

#c13310 as textRatioAAAA largeAAAFix
Aaon white
5.6:1passpassfail
  • AAA: use #a52c0d as the text (7.08:1)
Aaon black
3.75:1failpassfail
  • AA: use #d93912 as the text (4.54:1)
  • AAA: use #f17150 as the text (7.22:1)
  • AA: or shift the background to #e8e8e8 (4.57:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #c13310 as the background.

Brands using this color

Palettes built around it

Fonts for this mood

#c13310 reads as warm, vivid, playful. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #c13310
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 #c13310 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/c13310-c4a99c-62cbad-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