Color

#40ce6d

#40ce6d
hex#40ce6d
rgbrgb(64, 206, 109)
hslhsl(139, 59%, 53%)
oklchoklch(0.754 0.182 149.9)
Closest name: Emerald Green (#50c878)Relative luminance 0.4634

Colors that go with #40ce6d

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 →

#ce40a1

#5ace40 · #40ceb4

#6d40ce · #ce6d40

Split-complementary

Open in tool →

#b440ce · #ce405a

#405ace · #ce40a1 · #ceb440

Contrast

#40ce6d as textRatioAAAA largeAAAFix
Aaon white
2.05:1failfailfail
  • AA: use #238642 as the text (4.61:1)
  • AAA: use #1a6532 as the text (7.12:1)
  • AA: or shift the background to #474747 (4.54:1)
  • AAA: or shift the background to #292929 (7.11:1)
Aaon black
10.27:1passpasspassPasses 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 #40ce6d as the background.

Brands using this color

mcpConnect your agent — build around #40ce6d
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 #40ce6d and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/40ce6d-a2beae-c059d4-1f2d2a-ebf1e9?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