Color

#40ed88

#40ed88
hex#40ed88
rgbrgb(64, 237, 136)
hslhsl(145, 83%, 59%)
oklchoklch(0.837 0.197 152.6)
Closest name: Grotesque Green (#64e986)Relative luminance 0.6344

Colors that go with #40ed88

Deep Sky Blue, Taupe and Violet 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 →

#ed40a5

#4eed40 · #40eddf

#8840ed · #ed8840

Split-complementary

Open in tool →

#df40ed · #ed404e

#404eed · #ed40a5 · #eddf40

Contrast

#40ed88 as textRatioAAAA largeAAAFix
Aaon white
1.53:1failfailfail
  • AA: use #0d8740 as the text (4.61:1)
  • AAA: use #0a6730 as the text (7.01:1)
  • AA: or shift the background to #595959 (4.57:1)
  • AAA: or shift the background to #3d3d3d (7.08:1)
Aaon black
13.69:1passpasspassPasses 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 #40ed88 as the background.

Brands using this color

mcpConnect your agent — build around #40ed88
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 #40ed88 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/40ed88-a2beb1-cc59d4-1f2d2b-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