Color

#dd0333

#dd0333
hex#dd0333
rgbrgb(221, 3, 51)
hslhsl(347, 97%, 44%)
oklchoklch(0.568 0.228 21.8)
Closest name: crimson (#dc143c)Relative luminance 0.1568

Colors that go with #dd0333

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.

Tints & shades

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

Harmonies

Complementary

Open in tool →

#03ddae

#dd039f · #dd4103

#33dd03 · #0333dd

Split-complementary

Open in tool →

#03dd41 · #039fdd

#9fdd03 · #03ddae · #4103dd

Contrast

#dd0333 as textRatioAAAA largeAAAFix
Aaon white
5.08:1passpassfail
  • AAA: use #b00328 as the text (7.27:1)
Aaon black
4.14:1failpassfail
  • AA: use #ec0436 as the text (4.64:1)
  • AAA: use #fd5e81 as the text (7.09:1)
  • AA: or shift the background to #f2f2f2 (4.54:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #dd0333 as the background.

Brands using this color

Fonts for this mood

#dd0333 reads as warm, vivid, playful. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #dd0333
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 #dd0333 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/dd0333-c49ca0-62cb82-2d221f-f1e9ef?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