Color

#66d693

#66d693
hex#66d693
rgbrgb(102, 214, 147)
hslhsl(144, 58%, 62%)
oklchoklch(0.793 0.141 155.1)
Closest name: Electric Lettuce (#7bd181)Relative luminance 0.5302

Colors that go with #66d693

Charcoal, Blue and Crimson 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 →

#d666a9

#71d666 · #66d6cb

#9366d6 · #d69366

Split-complementary

Open in tool →

#cb66d6 · #d66671

#6671d6 · #d666a9 · #d6cb66

Contrast

#66d693 as textRatioAAAA largeAAAFix
Aaon white
1.81:1failfailfail
  • AA: use #23854a as the text (4.64:1)
  • AAA: use #1b6538 as the text (7.08:1)
  • AA: or shift the background to #4f4f4f (4.53:1)
  • AAA: or shift the background to #303030 (7.29:1)
Aaon black
11.6:1passpasspassPasses 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 #66d693 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 #66d693
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 #66d693 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/66d693-a2beb0-ca59d4-1f2d2b-eaf1e9?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