Color

#e31635

#e31635
hex#e31635
rgbrgb(227, 22, 53)
hslhsl(351, 82%, 49%)
oklchoklch(0.584 0.227 22.6)
Closest name: crimson (#dc143c)Relative luminance 0.1716

Colors that go with #e31635

Charcoal, Royal Blue and Steel Blue 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 →

#16e3c5

#e3169c · #e35e16

#35e316 · #1635e3

Split-complementary

Open in tool →

#16e35e · #169ce3

#9ce316 · #16e3c5 · #5e16e3

Contrast

#e31635 as textRatioAAAA largeAAAFix
Aaon white
4.74:1passpassfail
  • AAA: use #b01129 as the text (7.1:1)
Aaon black
4.43:1failpassfail
  • AA: use #e81736 as the text (4.61:1)
  • AAA: use #f06a7f as the text (7.07:1)
  • AA: or shift the background to #fafafa (4.54:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #e31635 as the background.

Brands using this color

Fonts for this mood

#e31635 reads as warm, vivid, playful. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #e31635
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 #e31635 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/e31635-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