Color

#d3ff42

#d3ff42
hex#d3ff42
rgbrgb(211, 255, 66)
hslhsl(74, 100%, 63%)
oklchoklch(0.937 0.208 122.2)
Closest name: Banana Flash (#eefe02)Relative luminance 0.8576

Colors that go with #d3ff42

Blue, Crimson and Red 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 →

#6e42ff

#ffcd42 · #75ff42

#42d3ff · #ff42d3

Split-complementary

Open in tool →

#4275ff · #cd42ff

#42ffcd · #6e42ff · #ff4275

Contrast

#d3ff42 as textRatioAAAA largeAAAFix
Aaon white
1.16:1failfailfail
  • AA: use #628000 as the text (4.56:1)
  • AAA: use #465c00 as the text (7.52:1)
  • AA: or shift the background to #6b6b6b (4.61:1)
  • AAA: or shift the background to #4f4f4f (7.08:1)
Aaon black
18.15:1passpasspassPasses 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 #d3ff42 as the background.

Brands using this color

mcpConnect your agent — build around #d3ff42
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 #d3ff42 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/d3ff42-b4bea2-4e72df-242d1f-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