Color

#ddf15b

#ddf15b
hex#ddf15b
rgbrgb(221, 241, 91)
hslhsl(68, 84%, 65%)
oklchoklch(0.916 0.173 116.4)
Closest name: Buttercup Glow (#f1f458)Relative luminance 0.7904

Colors that go with #ddf15b

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 →

#6f5bf1

#f1ba5b · #92f15b

#5bddf1 · #f15bdd

Split-complementary

Open in tool →

#5b92f1 · #ba5bf1

#5bf1ba · #6f5bf1 · #f15b92

Contrast

#ddf15b as textRatioAAAA largeAAAFix
Aaon white
1.25:1failfailfail
  • AA: use #6b7a0b as the text (4.76:1)
  • AAA: use #525e08 as the text (7.09:1)
  • AA: or shift the background to #666666 (4.6:1)
  • AAA: or shift the background to #4a4a4a (7.09:1)
Aaon black
16.81:1passpasspassPasses 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 #ddf15b as the background.

Brands using this color

mcpConnect your agent — build around #ddf15b
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 #ddf15b and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/ddf15b-b7bea2-4e81df-252d1f-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