Color

#d71d39

#d71d39
hex#d71d39
rgbrgb(215, 29, 57)
hslhsl(351, 76%, 48%)
oklchoklch(0.565 0.214 21.3)
Closest name: crimson (#dc143c)Relative luminance 0.1562

Colors that go with #d71d39

Charcoal, Royal Blue and Sea Green lead the list. Each partner is a real named colour with the reason it works — a wheel relationship, a neutral that carries it, or a pairing lifted from a palette or brand system that actually shipped — and every pair opens in the palette tool.

Tints & shades

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

Harmonies

Complementary

Open in tool →

#1dd7bc

#d71d96 · #d75e1d

#39d71d · #1d39d7

Split-complementary

Open in tool →

#1dd75e · #1d96d7

#96d71d · #1dd7bc · #5e1dd7

Contrast

#d71d39 as textRatioAAAA largeAAAFix
Aaon white
5.09:1passpassfail
  • AAA: use #af182f as the text (7.01:1)
Aaon black
4.12:1failpassfail
  • AA: use #e12340 as the text (4.52:1)
  • AAA: use #eb6f82 as the text (7.13:1)
  • AA: or shift the background to #f2f2f2 (4.55:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #d71d39 as the background.

Brands using this color

Fonts for this mood

#d71d39 reads as warm, vivid, playful. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #d71d39
live endpoint

Point any MCP client at the shared colors endpoint and your agent gets the same engine as this page — direct_palette, edit_direction, check_palette, check_contrast — read-only, no key. Every direction it proposes comes with a /colors/d/… link: open it, lock what you like, paste the link back, and the agent edits rather than re-rolls.

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

analyze #d71d39 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/d71d39-c49c9e-62cb89-2d231f-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