Color

#c3391d

#c3391d
hex#c3391d
rgbrgb(195, 57, 29)
hslhsl(10, 74%, 44%)
oklchoklch(0.547 0.179 33.2)
Closest name: Rust (#b7410e)Relative luminance 0.1462

Colors that go with #c3391d

Royal Blue, Sea Green 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.

Real palettes that use #c3391d

Tints & shades

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

Harmonies

Complementary

Open in tool →

#1da8c3

#c31d55 · #c38c1d

#1dc339 · #391dc3

Split-complementary

Open in tool →

#1dc38c · #1d55c3

#55c31d · #1da8c3 · #8c1dc3

Contrast

#c3391d as textRatioAAAA largeAAAFix
Aaon white
5.35:1passpassfail
  • AAA: use #a02f18 as the text (7.21:1)
Aaon black
3.92:1failpassfail
  • AA: use #d53e20 as the text (4.54:1)
  • AAA: use #e7765f as the text (7.15:1)
  • AA: or shift the background to #ededed (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 #c3391d as the background.

Brands using this color

No public brand in the corpus uses this exact color yet. Extract a brand to add one.

Palettes built around it

Fonts for this mood

#c3391d reads as warm, vivid, playful. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #c3391d
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 #c3391d and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/c3391d-c4a79c-62cbaa-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