Color

#e01a42

#e01a42
hex#e01a42
rgbrgb(224, 26, 66)
hslhsl(348, 79%, 49%)
oklchoklch(0.582 0.223 19.1)
Closest name: crimson (#dc143c)Relative luminance 0.1698

Colors that go with #e01a42

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.

Real palettes that use #e01a42

Tints & shades

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

Harmonies

Complementary

Open in tool →

#1ae0b8

#e01aa4 · #e0551a

#42e01a · #1a42e0

Split-complementary

Open in tool →

#1ae055 · #1aa4e0

#a4e01a · #1ae0b8 · #551ae0

Contrast

#e01a42 as textRatioAAAA largeAAAFix
Aaon white
4.78:1passpassfail
  • AAA: use #ad1433 as the text (7.18:1)
Aaon black
4.4:1failpassfail
  • AA: use #e41b43 as the text (4.54:1)
  • AAA: use #ee6d87 as the text (7.17:1)
  • AA: or shift the background to #fafafa (4.58:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #e01a42 as the background.

Brands using this color

Palettes built around it

Fonts for this mood

#e01a42 reads as warm, vivid, playful. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #e01a42
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 #e01a42 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/e01a42-c49c9f-62cb83-2d231f-f1e9ef?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