Color

#40ed5f

#40ed5f
hex#40ed5f
rgbrgb(64, 237, 95)
hslhsl(131, 83%, 59%)
oklchoklch(0.831 0.231 145.8)
Closest name: Alarming Slime (#2ce335)Relative luminance 0.6248

Colors that go with #40ed5f

Taupe, Violet and Charcoal 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 →

#ed40cd

#77ed40 · #40edb6

#5f40ed · #ed5f40

Split-complementary

Open in tool →

#b640ed · #ed4077

#4077ed · #ed40cd · #edb640

Contrast

#40ed5f as textRatioAAAA largeAAAFix
Aaon white
1.56:1failfailfail
  • AA: use #0d8723 as the text (4.66:1)
  • AAA: use #0a671b as the text (7.07:1)
  • AA: or shift the background to #595959 (4.5:1)
  • AAA: or shift the background to #3b3b3b (7.2:1)
Aaon black
13.5:1passpasspassPasses 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 #40ed5f as the background.

Brands using this color

mcpConnect your agent — build around #40ed5f
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 #40ed5f and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/40ed5f-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