Color

#eaf339

#eaf339
hex#eaf339
rgbrgb(234, 243, 57)
hslhsl(63, 89%, 59%)
oklchoklch(0.928 0.192 112.5)
Closest name: Buttercup Glow (#f1f458)Relative luminance 0.8189

Colors that go with #eaf339

Plum, Charcoal and Crimson 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 →

#4339f3

#f3a039 · #8df339

#39eaf3 · #f339ea

Split-complementary

Open in tool →

#398df3 · #a039f3

#39f3a0 · #4339f3 · #f3398d

Contrast

#eaf339 as textRatioAAAA largeAAAFix
Aaon white
1.21:1failfailfail
  • AA: use #737807 as the text (4.75:1)
  • AAA: use #575c05 as the text (7.15:1)
  • AA: or shift the background to #696969 (4.54:1)
  • AAA: or shift the background to #4a4a4a (7.33:1)
Aaon black
17.38:1passpasspassPasses AAA — no fix needed.

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #eaf339 as the background.

Brands using this color

mcpConnect your agent — build around #eaf339
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 #eaf339 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/eaf339-b9bea2-4e8ddf-262d1f-f1eee9?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