Color

#42d43a

#42d43a
hex#42d43a
rgbrgb(66, 212, 58)
hslhsl(117, 64%, 53%)
oklchoklch(0.764 0.227 142.3)
Closest name: Lime Green (#32cd32)Relative luminance 0.4855

Colors that go with #42d43a

Blue, 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 →

#cc3ad4

#8fd43a · #3ad47f

#3a42d4 · #d43a42

Split-complementary

Open in tool →

#7f3ad4 · #d43a8f

#3a8fd4 · #cc3ad4 · #d47f3a

Contrast

#42d43a as textRatioAAAA largeAAAFix
Aaon white
1.96:1failfailfail
  • AA: use #23861d as the text (4.67:1)
  • AAA: use #1a6416 as the text (7.3:1)
  • AA: or shift the background to #4a4a4a (4.52:1)
  • AAA: or shift the background to #2b2b2b (7.22:1)
Aaon black
10.71:1passpasspassPasses 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 #42d43a 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 #42d43a
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 #42d43a and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/42d43a-a2bea4-924edf-1f2d25-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