Color

#e01f35

#e01f35
hex#e01f35
rgbrgb(224, 31, 53)
hslhsl(353, 76%, 50%)
oklchoklch(0.582 0.221 23.2)
Closest name: crimson (#dc143c)Relative luminance 0.1708

Colors that go with #e01f35

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 →

#1fe0ca

#e01f96 · #e0691f

#35e01f · #1f35e0

Split-complementary

Open in tool →

#1fe069 · #1f96e0

#96e01f · #1fe0ca · #691fe0

Contrast

#e01f35 as textRatioAAAA largeAAAFix
Aaon white
4.75:1passpassfail
  • AAA: use #af182a as the text (7.03:1)
Aaon black
4.42:1failpassfail
  • AA: use #e12339 as the text (4.5:1)
  • AAA: use #eb6f7e as the text (7.11:1)
  • AA: or shift the background to #fafafa (4.56:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #e01f35 as the background.

Brands using this color

Fonts for this mood

#e01f35 reads as warm, vivid, playful. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #e01f35
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 #e01f35 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/e01f35-c49c9c-62cb8c-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