Color

#d11e0a

#d11e0a
hex#d11e0a
rgbrgb(209, 30, 10)
hslhsl(6, 91%, 43%)
oklchoklch(0.551 0.212 30.4)
Closest name: Angry Tomato (#d82029)Relative luminance 0.1451

Tints & shades

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

Harmonies

Complementary

Open in tool →

#0abdd1

#d10a5a · #d1820a

#0ad11e · #1e0ad1

Split-complementary

Open in tool →

#0ad182 · #0a5ad1

#5ad10a · #0abdd1 · #820ad1

Contrast

#d11e0a as textRatioAAAA largeAAAFix
Aaon white
5.38:1passpassfail
  • AAA: use #af1908 as the text (7.08:1)
Aaon black
3.9:1failpassfail
  • AA: use #e5210b as the text (4.55:1)
  • AAA: use #f76959 as the text (7.12:1)
  • AA: or shift the background to #ebebeb (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 #d11e0a as the background.

Brands using this color

Fonts for this mood

#d11e0a reads as warm, vivid, playful. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #d11e0a
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 #d11e0a and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/d11e0a-c4a59c-62cba3-2d271f-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