Color

#4ec664

#4ec664
hex#4ec664
rgbrgb(78, 198, 100)
hslhsl(131, 51%, 54%)
oklchoklch(0.736 0.174 147.1)
Closest name: Emerald Green (#50c878)Relative luminance 0.4293

Colors that go with #4ec664

Charcoal, Blue and Royal 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 →

#c64eb0

#74c64e · #4ec6a0

#644ec6 · #c6644e

Split-complementary

Open in tool →

#a04ec6 · #c64e74

#4e74c6 · #c64eb0 · #c6a04e

Contrast

#4ec664 as textRatioAAAA largeAAAFix
Aaon white
2.19:1failfailfail
  • AA: use #2c873c as the text (4.53:1)
  • AAA: use #20642d as the text (7.19:1)
  • AA: or shift the background to #424242 (4.59:1)
  • AAA: or shift the background to #242424 (7.09:1)
Aaon black
9.59:1passpasspassPasses 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 #4ec664 as the background.

Brands using this color

mcpConnect your agent — build around #4ec664
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 #4ec664 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/4ec664-a2beaa-b34edf-1f2d28-ecf1e9?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