Color

#ef5a4d

#ef5a4d
hex#ef5a4d
rgbrgb(239, 90, 77)
hslhsl(5, 84%, 62%)
oklchoklch(0.662 0.186 28.2)
Closest name: Amour (#ee5851)Relative luminance 0.262

Colors that go with #ef5a4d

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 →

#4de2ef

#ef4d91 · #efac4d

#4def5a · #5a4def

Split-complementary

Open in tool →

#4defac · #4d91ef

#91ef4d · #4de2ef · #ac4def

Contrast

#ef5a4d as textRatioAAAA largeAAAFix
Aaon white
3.37:1failpassfail
  • AA: use #e62514 as the text (4.53:1)
  • AAA: use #ae1c0f as the text (7.06:1)
  • AA: or shift the background to #242424 (4.61:1)
Aaon black
6.24:1passpassfail
  • AAA: use #f16c5f as the text (7.05:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #ef5a4d as the background.

Brands using this color

Palettes built around it

Fonts for this mood

#ef5a4d reads as warm, vivid, playful. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #ef5a4d
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 #ef5a4d and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/ef5a4d-c4a49c-62cba1-2d261f-f1e9ec?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