Color

#66ebba

#66ebba
hex#66ebba
rgbrgb(102, 235, 186)
hslhsl(158, 77%, 66%)
oklchoklch(0.853 0.137 166)
Closest name: Jittery Jade (#77eebb)Relative luminance 0.6579

Colors that go with #66ebba

Charcoal, Crimson 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 →

#eb6696

#66eb77 · #66d9eb

#ba66eb · #ebba66

Split-complementary

Open in tool →

#eb66d9 · #eb7766

#7766eb · #eb6696 · #d9eb66

Contrast

#66ebba as textRatioAAAA largeAAAFix
Aaon white
1.48:1failfailfail
  • AA: use #12875c as the text (4.52:1)
  • AAA: use #0d6344 as the text (7.28:1)
  • AA: or shift the background to #5c5c5c (4.51:1)
  • AAA: or shift the background to #3d3d3d (7.32:1)
Aaon black
14.16:1passpasspassPasses 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 #66ebba 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 #66ebba
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 #66ebba and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/66ebba-a2beb7-d459c2-1f2c2d-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