Color

#66f0eb

#66f0eb
hex#66f0eb
rgbrgb(102, 240, 235)
hslhsl(178, 82%, 67%)
oklchoklch(0.878 0.12 191.9)
Closest name: Bath Water (#88eeee)Relative luminance 0.7114

Colors that go with #66f0eb

Charcoal, Deep Sky Blue and Light Coral 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 →

#f0666a

#66f0a6 · #66aff0

#eb66f0 · #f0eb66

Split-complementary

Open in tool →

#f066af · #f0a666

#a666f0 · #f0666a · #aff066

Contrast

#66f0eb as textRatioAAAA largeAAAFix
Aaon white
1.38:1failfailfail
  • AA: use #0d827e as the text (4.65:1)
  • AAA: use #0a615f as the text (7.27:1)
  • AA: or shift the background to #5e5e5e (4.7:1)
  • AAA: or shift the background to #424242 (7.29:1)
Aaon black
15.23:1passpasspassPasses 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 #66f0eb 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 #66f0eb
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 #66f0eb and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/66f0eb-a2bcbe-d45999-1f282d-e9f1ed?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