Color

#3cfb65

#3cfb65
hex#3cfb65
rgbrgb(60, 251, 101)
hslhsl(133, 96%, 61%)
oklchoklch(0.867 0.244 146.2)
Closest name: Cathode Green (#00ff55)Relative luminance 0.7089

Colors that go with #3cfb65

Violet, Hot Pink and Plum 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 →

#fb3cd2

#72fb3c · #3cfbc5

#653cfb · #fb653c

Split-complementary

Open in tool →

#c53cfb · #fb3c72

#3c72fb · #fb3cd2 · #fbc53c

Contrast

#3cfb65 as textRatioAAAA largeAAAFix
Aaon white
1.38:1failfailfail
  • AA: use #03871f as the text (4.68:1)
  • AAA: use #026417 as the text (7.4:1)
  • AA: or shift the background to #5e5e5e (4.69:1)
  • AAA: or shift the background to #424242 (7.26:1)
Aaon black
15.18:1passpasspassPasses 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 #3cfb65 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 #3cfb65
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 #3cfb65 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/3cfb65-a2beab-b84edf-1f2d28-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