Color

#df1133

#df1133
hex#df1133
rgbrgb(223, 17, 51)
hslhsl(350, 86%, 47%)
oklchoklch(0.575 0.226 22.5)
Closest name: crimson (#dc143c)Relative luminance 0.1633

Colors that go with #df1133

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 →

#11dfbd

#df119a · #df5511

#33df11 · #1133df

Split-complementary

Open in tool →

#11df55 · #119adf

#9adf11 · #11dfbd · #5511df

Contrast

#df1133 as textRatioAAAA largeAAAFix
Aaon white
4.92:1passpassfail
  • AAA: use #af0d28 as the text (7.21:1)
Aaon black
4.27:1failpassfail
  • AA: use #e81135 as the text (4.56:1)
  • AAA: use #f4677f as the text (7.09:1)
  • AA: or shift the background to #f5f5f5 (4.52:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #df1133 as the background.

Brands using this color

Fonts for this mood

#df1133 reads as warm, vivid, playful. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #df1133
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 #df1133 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/df1133-c49c9e-62cb87-2d231f-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