Color

#dd231d

#dd231d
hex#dd231d
rgbrgb(221, 35, 29)
hslhsl(2, 77%, 49%)
oklchoklch(0.576 0.219 28.6)
Closest name: Angry Tomato (#d82029)Relative luminance 0.1666

Tints & shades

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

Harmonies

Complementary

Open in tool →

#1dd7dd

#dd1d77 · #dd831d

#1ddd23 · #231ddd

Split-complementary

Open in tool →

#1ddd83 · #1d77dd

#77dd1d · #1dd7dd · #831ddd

Contrast

#dd231d as textRatioAAAA largeAAAFix
Aaon white
4.85:1passpassfail
  • AAA: use #ac1b16 as the text (7.19:1)
Aaon black
4.33:1failpassfail
  • AA: use #e2241d as the text (4.5:1)
  • AAA: use #ec6e6a as the text (7.01:1)
  • AA: or shift the background to #f7f7f7 (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 #dd231d as the background.

Brands using this color

Fonts for this mood

#dd231d reads as warm, vivid, playful. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #dd231d
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 #dd231d and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/dd231d-c4a29c-62cb9c-2d261f-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