Color

#66db7e

#66db7e
hex#66db7e
rgbrgb(102, 219, 126)
hslhsl(132, 62%, 63%)
oklchoklch(0.801 0.168 148.2)
Closest name: Electric Lettuce (#7bd181)Relative luminance 0.5499

Colors that go with #66db7e

Blue, Charcoal and Deep Sky Blue 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 →

#db66c4

#89db66 · #66dbb8

#7e66db · #db7e66

Split-complementary

Open in tool →

#b866db · #db6689

#6689db · #db66c4 · #dbb866

Contrast

#66db7e as textRatioAAAA largeAAAFix
Aaon white
1.75:1failfailfail
  • AA: use #208835 as the text (4.53:1)
  • AAA: use #176326 as the text (7.37:1)
  • AA: or shift the background to #4f4f4f (4.68:1)
  • AAA: or shift the background to #333333 (7.22:1)
Aaon black
12:1passpasspassPasses 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 #66db7e 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 #66db7e
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 #66db7e and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/66db7e-a2beab-b64edf-1f2d28-ecf1e9?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