Color

#66ec32

#66ec32
hex#66ec32
rgbrgb(102, 236, 50)
hslhsl(103, 83%, 56%)
oklchoklch(0.835 0.244 139)
Closest name: Becquerel (#4bec13)Relative luminance 0.6305

Colors that go with #66ec32

Deep Sky Blue, Taupe and Violet 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 →

#b732ec

#c4ec32 · #32ec5a

#3266ec · #ec3266

Split-complementary

Open in tool →

#5a32ec · #ec32c4

#32c4ec · #b732ec · #ec5a32

Contrast

#66ec32 as textRatioAAAA largeAAAFix
Aaon white
1.54:1failfailfail
  • AA: use #2f870d as the text (4.57:1)
  • AAA: use #226209 as the text (7.45:1)
  • AA: or shift the background to #595959 (4.54:1)
  • AAA: or shift the background to #3d3d3d (7.04:1)
Aaon black
13.61:1passpasspassPasses 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 #66ec32 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 #66ec32
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 #66ec32 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/66ec32-a6bea2-704edf-1f2d21-eff1e9?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