Color

#42ae76

#42ae76
hex#42ae76
rgbrgb(66, 174, 118)
hslhsl(149, 45%, 47%)
oklchoklch(0.674 0.13 157.3)
Closest name: mediumseagreen (#3cb371)Relative luminance 0.3274

Colors that go with #42ae76

Charcoal, Blue and Cornflower 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 →

#ae427a

#44ae42 · #42aeac

#7642ae · #ae7642

Split-complementary

Open in tool →

#ac42ae · #ae4244

#4244ae · #ae427a · #aeac42

Contrast

#42ae76 as textRatioAAAA largeAAAFix
Aaon white
2.78:1failfailfail
  • AA: use #32855a as the text (4.53:1)
  • AAA: use #266444 as the text (7.03:1)
  • AA: or shift the background to #333333 (4.54:1)
  • AAA: or shift the background to #0a0a0a (7.12:1)
Aaon black
7.55:1passpasspassPasses 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 #42ae76 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 #42ae76
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 #42ae76 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/42ae76-a2beb3-d459d4-1f2d2c-e9f1e9?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