Color

#42e07c

#42e07c
hex#42e07c
rgbrgb(66, 224, 124)
hslhsl(142, 72%, 57%)
oklchoklch(0.803 0.191 151.2)
Closest name: Grotesque Green (#64e986)Relative luminance 0.5592

Colors that go with #42e07c

Charcoal, Deep Sky Blue and Taupe 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 →

#e042a6

#57e042 · #42e0cb

#7c42e0 · #e07c42

Split-complementary

Open in tool →

#cb42e0 · #e04257

#4257e0 · #e042a6 · #e0cb42

Contrast

#42e07c as textRatioAAAA largeAAAFix
Aaon white
1.72:1failfailfail
  • AA: use #168840 as the text (4.54:1)
  • AAA: use #10652f as the text (7.18:1)
  • AA: or shift the background to #525252 (4.53:1)
  • AAA: or shift the background to #363636 (7.01:1)
Aaon black
12.18:1passpasspassPasses 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 #42e07c as the background.

Brands using this color

mcpConnect your agent — build around #42e07c
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 #42e07c and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/42e07c-a2beaf-c659d4-1f2d2a-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