Color

#66ea48

#66ea48
hex#66ea48
rgbrgb(102, 234, 72)
hslhsl(109, 79%, 60%)
oklchoklch(0.832 0.23 140.3)
Closest name: Becquerel (#4bec13)Relative luminance 0.6214

Colors that go with #66ea48

Deep Sky Blue, Violet 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 →

#cc48ea

#b7ea48 · #48ea7b

#4866ea · #ea4866

Split-complementary

Open in tool →

#7b48ea · #ea48b7

#48b7ea · #cc48ea · #ea7b48

Contrast

#66ea48 as textRatioAAAA largeAAAFix
Aaon white
1.56:1failfailfail
  • AA: use #258410 as the text (4.79:1)
  • AAA: use #1c640c as the text (7.3:1)
  • AA: or shift the background to #575757 (4.62:1)
  • AAA: or shift the background to #3b3b3b (7.16:1)
Aaon black
13.43:1passpasspassPasses 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 #66ea48 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 #66ea48
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 #66ea48 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/66ea48-a4bea2-7e4edf-1f2d23-eef1e9?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