Color

#ef525a

#ef525a
hex#ef525a
rgbrgb(239, 82, 90)
hslhsl(357, 83%, 63%)
oklchoklch(0.654 0.193 21.4)
Closest name: Amour (#ee5851)Relative luminance 0.2512

Colors that go with #ef525a

Cadet Blue, Charcoal and Amber 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 →

#52efe7

#ef52a8 · #ef9952

#5aef52 · #525aef

Split-complementary

Open in tool →

#52ef99 · #52a8ef

#a8ef52 · #52efe7 · #9952ef

Contrast

#ef525a as textRatioAAAA largeAAAFix
Aaon white
3.49:1failpassfail
  • AA: use #e91620 as the text (4.56:1)
  • AAA: use #b11019 as the text (7.1:1)
  • AA: or shift the background to #212121 (4.62:1)
Aaon black
6.02:1passpassfail
  • AAA: use #f16a70 as the text (7.04:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #ef525a as the background.

Brands using this color

No public brand in the corpus uses this exact color yet. Extract a brand to add one.

Fonts for this mood

#ef525a reads as warm, vivid, playful. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #ef525a
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 #ef525a and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/ef525a-c49f9c-62cb93-2d251f-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