Color

#e02437

#e02437
hex#e02437
rgbrgb(224, 36, 55)
hslhsl(354, 75%, 51%)
oklchoklch(0.585 0.218 23.2)
Closest name: crimson (#dc143c)Relative luminance 0.1738

Colors that go with #e02437

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 →

#24e0cd

#e02495 · #e06f24

#37e024 · #2437e0

Split-complementary

Open in tool →

#24e06f · #2495e0

#95e024 · #24e0cd · #6f24e0

Contrast

#e02437 as textRatioAAAA largeAAAFix
Aaon white
4.69:1passpassfail
  • AAA: use #ae1928 as the text (7.07:1)
Aaon black
4.48:1failpassfail
  • AA: use #e0293b as the text (4.55:1)
  • AAA: use #eb707c as the text (7.14:1)
  • AA: or shift the background to #fcfcfc (4.57:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #e02437 as the background.

Brands using this color

Fonts for this mood

#e02437 reads as warm, vivid, playful. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #e02437
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 #e02437 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/e02437-c49d9c-62cb8e-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