Color

#66a985

#66a985
hex#66a985
rgbrgb(102, 169, 133)
hslhsl(148, 28%, 53%)
oklchoklch(0.68 0.087 159.4)
Closest name: Lily Pads (#6db083)Relative luminance 0.3289

Colors that go with #66a985

Charcoal, Cornflower Blue and 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.

Real palettes that use #66a985

Tints & shades

Every swatch is its own page — click any to analyze it.

Harmonies

Complementary

Open in tool →

#a96689

#68a966 · #66a9a6

#8566a9 · #a98566

Split-complementary

Open in tool →

#a666a9 · #a96668

#6668a9 · #a96689 · #a9a666

Contrast

#66a985 as textRatioAAAA largeAAAFix
Aaon white
2.77:1failfailfail
  • AA: use #487f62 as the text (4.68:1)
  • AAA: use #355f49 as the text (7.28:1)
  • AA: or shift the background to #333333 (4.56:1)
  • AAA: or shift the background to #0d0d0d (7.01:1)
Aaon black
7.58:1passpasspassPasses 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 #66a985 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 #66a985
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 #66a985 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/66a985-a2beb2-d259d4-1f2d2c-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