Color

#42d147

#42d147
hex#42d147
rgbrgb(66, 209, 71)
hslhsl(122, 61%, 54%)
oklchoklch(0.757 0.216 143.5)
Closest name: Lime Green (#32cd32)Relative luminance 0.4721

Colors that go with #42d147

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 →

#d142cc

#85d142 · #42d18e

#4742d1 · #d14742

Split-complementary

Open in tool →

#8e42d1 · #d14285

#4285d1 · #d142cc · #d18e42

Contrast

#42d147 as textRatioAAAA largeAAAFix
Aaon white
2.01:1failfailfail
  • AA: use #218724 as the text (4.61:1)
  • AAA: use #19671b as the text (7.01:1)
  • AA: or shift the background to #474747 (4.62:1)
  • AAA: or shift the background to #2b2b2b (7.04:1)
Aaon black
10.44:1passpasspassPasses 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 #42d147 as the background.

Brands using this color

No public brand in the corpus uses this exact color yet. Extract a brand to add one.

mcpConnect your agent — build around #42d147
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 #42d147 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/42d147-a2bea6-9e4edf-1f2d26-edf1e9?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