Color

#3ecc68

#3ecc68
hex#3ecc68
rgbrgb(62, 204, 104)
hslhsl(138, 58%, 52%)
oklchoklch(0.748 0.185 149.1)
Closest name: Battletoad (#11cc55)Relative luminance 0.4521

Colors that go with #3ecc68

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 →

#cc3ea1

#5acc3e · #3eccaf

#683ecc · #cc683e

Split-complementary

Open in tool →

#af3ecc · #cc3e5a

#3e5acc · #cc3ea1 · #ccaf3e

Contrast

#3ecc68 as textRatioAAAA largeAAAFix
Aaon white
2.09:1failfailfail
  • AA: use #238541 as the text (4.66:1)
  • AAA: use #1b6531 as the text (7.11:1)
  • AA: or shift the background to #454545 (4.58:1)
  • AAA: or shift the background to #262626 (7.24:1)
Aaon black
10.04:1passpasspassPasses 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 #3ecc68 as the background.

Brands using this color

mcpConnect your agent — build around #3ecc68
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 #3ecc68 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/3ecc68-a2beae-be59d4-1f2d29-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