Color

#6ffc40

#6ffc40
hex#6ffc40
rgbrgb(111, 252, 64)
hslhsl(105, 97%, 62%)
oklchoklch(0.879 0.251 139.3)
Closest name: lawngreen (#7cfc00)Relative luminance 0.7337

Colors that go with #6ffc40

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 →

#cd40fc

#cdfc40 · #40fc6f

#406ffc · #fc406f

Split-complementary

Open in tool →

#6f40fc · #fc40cd

#40cdfc · #cd40fc · #fc6f40

Contrast

#6ffc40 as textRatioAAAA largeAAAFix
Aaon white
1.34:1failfailfail
  • AA: use #238802 as the text (4.57:1)
  • AAA: use #1a6402 as the text (7.32:1)
  • AA: or shift the background to #616161 (4.62:1)
  • AAA: or shift the background to #454545 (7.16:1)
Aaon black
15.67:1passpasspassPasses 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 #6ffc40 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 #6ffc40
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 #6ffc40 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/6ffc40-a6bea2-754edf-1f2d22-eff1e9?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