Color

#42cd72

#42cd72
hex#42cd72
rgbrgb(66, 205, 114)
hslhsl(141, 58%, 53%)
oklchoklch(0.753 0.176 150.9)
Closest name: Emerald Green (#50c878)Relative luminance 0.4604

Colors that go with #42cd72

Charcoal, Mustard Yellow 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 →

#cd429c

#56cd42 · #42cdb8

#7242cd · #cd7242

Split-complementary

Open in tool →

#b842cd · #cd4256

#4256cd · #cd429c · #cdb842

Contrast

#42cd72 as textRatioAAAA largeAAAFix
Aaon white
2.06:1failfailfail
  • AA: use #238546 as the text (4.65:1)
  • AAA: use #1b6535 as the text (7.1:1)
  • AA: or shift the background to #474747 (4.52:1)
  • AAA: or shift the background to #292929 (7.07:1)
Aaon black
10.21:1passpasspassPasses 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 #42cd72 as the background.

Brands using this color

mcpConnect your agent — build around #42cd72
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 #42cd72 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/42cd72-a2beaf-c459d4-1f2d2a-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