Color

#dc181f

#dc181f
hex#dc181f
rgbrgb(220, 24, 31)
hslhsl(358, 80%, 48%)
oklchoklch(0.57 0.222 27.2)
Closest name: Angry Tomato (#d82029)Relative luminance 0.1597

Tints & shades

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

Harmonies

Complementary

Open in tool →

#18dcd6

#dc1881 · #dc7418

#1fdc18 · #181fdc

Split-complementary

Open in tool →

#18dc74 · #1881dc

#81dc18 · #18dcd6 · #7418dc

Contrast

#dc181f as textRatioAAAA largeAAAFix
Aaon white
5.01:1passpassfail
  • AAA: use #ae1319 as the text (7.22:1)
Aaon black
4.19:1failpassfail
  • AA: use #e61920 as the text (4.52:1)
  • AAA: use #ef6c70 as the text (7.05:1)
  • AA: or shift the background to #f5f5f5 (4.59:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #dc181f as the background.

Brands using this color

Fonts for this mood

#dc181f reads as warm, vivid, playful. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #dc181f
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 #dc181f and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/dc181f-c49f9c-62cb95-2d251f-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