Color

#ddf566

#ddf566
hex#ddf566
rgbrgb(221, 245, 102)
hslhsl(70, 88%, 68%)
oklchoklch(0.925 0.169 117.8)
Closest name: Buttercup Glow (#f1f458)Relative luminance 0.8164

Colors that go with #ddf566

Plum, Blue and Charcoal 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 →

#7e66f5

#f5c566 · #95f566

#66ddf5 · #f566dd

Split-complementary

Open in tool →

#6695f5 · #c566f5

#66f5c5 · #7e66f5 · #f56695

Contrast

#ddf566 as textRatioAAAA largeAAAFix
Aaon white
1.21:1failfailfail
  • AA: use #697d08 as the text (4.63:1)
  • AAA: use #4d5b06 as the text (7.46:1)
  • AA: or shift the background to #696969 (4.53:1)
  • AAA: or shift the background to #4a4a4a (7.31:1)
Aaon black
17.33:1passpasspassPasses 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 #ddf566 as the background.

Brands using this color

mcpConnect your agent — build around #ddf566
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 #ddf566 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/ddf566-b6bea2-4e7cdf-252d1f-f1efe9?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