Color

#dd1d03

#dd1d03
hex#dd1d03
rgbrgb(221, 29, 3)
hslhsl(7, 97%, 44%)
oklchoklch(0.572 0.223 30.7)
Closest name: Angry Tomato (#d82029)Relative luminance 0.1626

Colors that go with #dd1d03

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 →

#03c4dd

#dd0357 · #dd8a03

#03dd1d · #1d03dd

Split-complementary

Open in tool →

#03dd8a · #0357dd

#57dd03 · #03c4dd · #8a03dd

Contrast

#dd1d03 as textRatioAAAA largeAAAFix
Aaon white
4.94:1passpassfail
  • AAA: use #b01703 as the text (7.07:1)
Aaon black
4.25:1failpassfail
  • AA: use #e71e04 as the text (4.59:1)
  • AAA: use #fc634f as the text (7.04:1)
  • AA: or shift the background to #f5f5f5 (4.53:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #dd1d03 as the background.

Brands using this color

Fonts for this mood

#dd1d03 reads as warm, vivid, playful. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #dd1d03
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 #dd1d03 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/dd1d03-c4a59c-62cba4-2d271f-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