Color

#42f0aa

#42f0aa
hex#42f0aa
rgbrgb(66, 240, 170)
hslhsl(156, 85%, 60%)
oklchoklch(0.852 0.171 161.4)
Closest name: Hyperpop Green (#17f9a6)Relative luminance 0.6638

Colors that go with #42f0aa

Taupe, Hot Pink and Charcoal 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 →

#f04288

#42f054 · #42def0

#aa42f0 · #f0aa42

Split-complementary

Open in tool →

#f042de · #f05442

#5442f0 · #f04288 · #def042

Contrast

#42f0aa as textRatioAAAA largeAAAFix
Aaon white
1.47:1failfailfail
  • AA: use #0b8454 as the text (4.73:1)
  • AAA: use #08633f as the text (7.33:1)
  • AA: or shift the background to #5c5c5c (4.55:1)
  • AAA: or shift the background to #404040 (7.05:1)
Aaon black
14.28:1passpasspassPasses 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 #42f0aa as the background.

Brands using this color

mcpConnect your agent — build around #42f0aa
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 #42f0aa and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/42f0aa-a2beb6-d459c6-1f2d2d-e9f1ea?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