Color

#42ff7e

#42ff7e
hex#42ff7e
rgbrgb(66, 255, 126)
hslhsl(139, 100%, 63%)
oklchoklch(0.881 0.227 149.1)
Closest name: Experimintal Green (#4cff7b)Relative luminance 0.7418

Colors that go with #42ff7e

Violet, Charcoal and Deep Sky 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 →

#ff42c3

#65ff42 · #42ffdc

#7e42ff · #ff7e42

Split-complementary

Open in tool →

#dc42ff · #ff4265

#4265ff · #ff42c3 · #ffdc42

Contrast

#42ff7e as textRatioAAAA largeAAAFix
Aaon white
1.33:1failfailfail
  • AA: use #00852a as the text (4.79:1)
  • AAA: use #006620 as the text (7.19:1)
  • AA: or shift the background to #636363 (4.53:1)
  • AAA: or shift the background to #474747 (7.01:1)
Aaon black
15.84:1passpasspassPasses 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 #42ff7e 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 #42ff7e
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 #42ff7e and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/42ff7e-a2beae-c059d4-1f2d2a-ebf1e9?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