Color

#c33313

#c33313
hex#c33313
rgbrgb(195, 51, 19)
hslhsl(11, 82%, 42%)
oklchoklch(0.541 0.185 33.4)
Closest name: Bloodshed (#ba271a)Relative luminance 0.1402

Colors that go with #c33313

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 #c33313

Tints & shades

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

Harmonies

Complementary

Open in tool →

#13a3c3

#c3134b · #c38b13

#13c333 · #3313c3

Split-complementary

Open in tool →

#13c38b · #134bc3

#4bc313 · #13a3c3 · #8b13c3

Contrast

#c33313 as textRatioAAAA largeAAAFix
Aaon white
5.52:1passpassfail
  • AAA: use #a22b10 as the text (7.27:1)
Aaon black
3.8:1failpassfail
  • AA: use #da3a16 as the text (4.6:1)
  • AAA: use #ee7053 as the text (7.08:1)
  • AA: or shift the background to #e8e8e8 (4.51:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #c33313 as the background.

Brands using this color

Palettes built around it

Fonts for this mood

#c33313 reads as warm, vivid, playful. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #c33313
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 #c33313 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/c33313-c4a89c-62cbab-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