Color

#dc0404

#dc0404
hex#dc0404
rgbrgb(220, 4, 4)
hslhsl(0, 96%, 44%)
oklchoklch(0.563 0.229 29.1)
Closest name: Angry Tomato (#d82029)Relative luminance 0.1531

Tints & shades

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

Harmonies

Complementary

Open in tool →

#04dcdc

#dc0470 · #dc7004

#04dc04 · #0404dc

Split-complementary

Open in tool →

#04dc70 · #0470dc

#70dc04 · #04dcdc · #7004dc

Contrast

#dc0404 as textRatioAAAA largeAAAFix
Aaon white
5.17:1passpassfail
  • AAA: use #b40404 as the text (7.1:1)
Aaon black
4.06:1failpassfail
  • AA: use #eb0505 as the text (4.56:1)
  • AAA: use #fc6464 as the text (7.15:1)
  • AA: or shift the background to #f0f0f0 (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 #dc0404 as the background.

Brands using this color

Fonts for this mood

#dc0404 reads as warm, vivid, playful. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #dc0404
live endpoint

Point any MCP client at the shared colors endpoint and your agent gets the same engine as this page — generate_palette, check_contrast, analyze_color — read-only, no key. Every palette it proposes comes with a /palettes/new/… link: open it, lock what you like, paste the link back.

endpointhttps://mcp.brandsweets.com/colors/mcp
claude mcp add --transport http brandsweets-colors https://mcp.brandsweets.com/colors/mcp
try this prompt

analyze #dc0404 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/dc0404-c4a19c-62cb98-2d251f-f1e9ed?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