Color

#d51522

#d51522
hex#d51522
rgbrgb(213, 21, 34)
hslhsl(356, 82%, 46%)
oklchoklch(0.555 0.217 26.2)
Closest name: Angry Tomato (#d82029)Relative luminance 0.148

Tints & shades

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

Harmonies

Complementary

Open in tool →

#15d5c9

#d51582 · #d56815

#22d515 · #1522d5

Split-complementary

Open in tool →

#15d568 · #1582d5

#82d515 · #15d5c9 · #6815d5

Contrast

#d51522 as textRatioAAAA largeAAAFix
Aaon white
5.3:1passpassfail
  • AAA: use #b0111c as the text (7.14:1)
Aaon black
3.96:1failpassfail
  • AA: use #e81725 as the text (4.58:1)
  • AAA: use #f06a73 as the text (7.01:1)
  • AA: or shift the background to #ededed (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 #d51522 as the background.

Brands using this color

Fonts for this mood

#d51522 reads as warm, vivid, playful. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #d51522
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 #d51522 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/d51522-c49e9c-62cb91-2d241f-f1e9ee?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