Color

#d71d3f

#d71d3f
hex#d71d3f
rgbrgb(215, 29, 63)
hslhsl(349, 76%, 48%)
oklchoklch(0.566 0.214 19.5)
Closest name: crimson (#dc143c)Relative luminance 0.1568

Colors that go with #d71d3f

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 →

#1dd7b5

#d71d9d · #d7581d

#3fd71d · #1d3fd7

Split-complementary

Open in tool →

#1dd758 · #1d9dd7

#9dd71d · #1dd7b5 · #581dd7

Contrast

#d71d3f as textRatioAAAA largeAAAFix
Aaon white
5.08:1passpassfail
  • AAA: use #ab1732 as the text (7.24:1)
Aaon black
4.14:1failpassfail
  • AA: use #e12346 as the text (4.53:1)
  • AAA: use #eb6f86 as the text (7.15:1)
  • AA: or shift the background to #f2f2f2 (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 #d71d3f as the background.

Brands using this color

Fonts for this mood

#d71d3f reads as warm, vivid, playful. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #d71d3f
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 #d71d3f and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/d71d3f-c49c9f-62cb85-2d231f-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