Color

#66ebb8

#66ebb8
hex#66ebb8
rgbrgb(102, 235, 184)
hslhsl(157, 77%, 66%)
oklchoklch(0.852 0.139 165.1)
Closest name: Jittery Jade (#77eebb)Relative luminance 0.657

Colors that go with #66ebb8

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 →

#eb6699

#66eb75 · #66dbeb

#b866eb · #ebb866

Split-complementary

Open in tool →

#eb66db · #eb7566

#7566eb · #eb6699 · #dbeb66

Contrast

#66ebb8 as textRatioAAAA largeAAAFix
Aaon white
1.49:1failfailfail
  • AA: use #12875a as the text (4.53:1)
  • AAA: use #0d6342 as the text (7.29:1)
  • AA: or shift the background to #5c5c5c (4.5:1)
  • AAA: or shift the background to #3d3d3d (7.31:1)
Aaon black
14.14:1passpasspassPasses 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 #66ebb8 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 #66ebb8
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 #66ebb8 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/66ebb8-a2beb7-d459c4-1f2c2d-e9f1ea?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