Color

#eef55b

#eef55b
hex#eef55b
rgbrgb(238, 245, 91)
hslhsl(63, 89%, 66%)
oklchoklch(0.937 0.173 111.8)
Closest name: Buttercup Glow (#f1f458)Relative luminance 0.8424

Colors that go with #eef55b

Charcoal, Crimson and Taupe 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 →

#635bf5

#f5b05b · #a1f55b

#5beef5 · #f55bee

Split-complementary

Open in tool →

#5ba1f5 · #b05bf5

#5bf5b0 · #635bf5 · #f55ba1

Contrast

#eef55b as textRatioAAAA largeAAAFix
Aaon white
1.18:1failfailfail
  • AA: use #737807 as the text (4.75:1)
  • AAA: use #575c05 as the text (7.15:1)
  • AA: or shift the background to #6b6b6b (4.53:1)
  • AAA: or shift the background to #4d4d4d (7.18:1)
Aaon black
17.85:1passpasspassPasses 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 #eef55b as the background.

Brands using this color

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

mcpConnect your agent — build around #eef55b
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 #eef55b and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/eef55b-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