Color

#66ebca

#66ebca
hex#66ebca
rgbrgb(102, 235, 202)
hslhsl(165, 77%, 66%)
oklchoklch(0.857 0.127 174.2)
Closest name: Aphrodite Aqua (#45e9c1)Relative luminance 0.6651

Colors that go with #66ebca

Charcoal, Deep Sky Blue and Taupe 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 →

#eb6687

#66eb87 · #66caeb

#ca66eb · #ebca66

Split-complementary

Open in tool →

#eb66ca · #eb8766

#8766eb · #eb6687 · #caeb66

Contrast

#66ebca as textRatioAAAA largeAAAFix
Aaon white
1.47:1failfailfail
  • AA: use #118366 as the text (4.71:1)
  • AAA: use #0d634e as the text (7.21:1)
  • AA: or shift the background to #5c5c5c (4.55:1)
  • AAA: or shift the background to #404040 (7.06:1)
Aaon black
14.3:1passpasspassPasses 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 #66ebca 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 #66ebca
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 #66ebca and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/66ebca-a2beba-d459b3-1f2b2d-e9f1eb?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