Color

#66fa68

#66fa68
hex#66fa68
rgbrgb(102, 250, 104)
hslhsl(121, 94%, 69%)
oklchoklch(0.875 0.227 143.5)
Closest name: Experimintal Green (#4cff7b)Relative luminance 0.722

Colors that go with #66fa68

Violet, Charcoal 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 →

#fa66f8

#adfa66 · #66fab2

#6866fa · #fa6866

Split-complementary

Open in tool →

#b266fa · #fa66ad

#66adfa · #fa66f8 · #fab266

Contrast

#66fa68 as textRatioAAAA largeAAAFix
Aaon white
1.36:1failfailfail
  • AA: use #048606 as the text (4.75:1)
  • AAA: use #036805 as the text (7.03:1)
  • AA: or shift the background to #616161 (4.55:1)
  • AAA: or shift the background to #454545 (7.05:1)
Aaon black
15.44:1passpasspassPasses 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 #66fa68 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 #66fa68
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 #66fa68 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/66fa68-a2bea6-9b4edf-1f2d26-edf1e9?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