Color

#ed3535

#ed3535
hex#ed3535
rgbrgb(237, 53, 53)
hslhsl(0, 84%, 57%)
oklchoklch(0.619 0.219 26.5)
Closest name: Arcade Fire (#ee3311)Relative luminance 0.2081

Colors that go with #ed3535

Charcoal, Dodger 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 →

#35eded

#ed3591 · #ed9135

#35ed35 · #3535ed

Split-complementary

Open in tool →

#35ed91 · #3591ed

#91ed35 · #35eded · #9135ed

Contrast

#ed3535 as textRatioAAAA largeAAAFix
Aaon white
4.07:1failpassfail
  • AA: use #eb1414 as the text (4.52:1)
  • AAA: use #b21010 as the text (7.06:1)
  • AA: or shift the background to #141414 (4.53:1)
Aaon black
5.16:1passpassfail

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #ed3535 as the background.

Brands using this color

Fonts for this mood

#ed3535 reads as warm, vivid, playful. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #ed3535
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 #ed3535 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/ed3535-c4a19c-62cb98-2d251f-f1e9ed?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