Color

#3cfb79

#3cfb79
hex#3cfb79
rgbrgb(60, 251, 121)
hslhsl(139, 96%, 61%)
oklchoklch(0.869 0.228 148.9)
Closest name: springgreen (#00ff7f)Relative luminance 0.7134

Colors that go with #3cfb79

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 →

#fb3cbf

#5ffb3c · #3cfbd8

#793cfb · #fb793c

Split-complementary

Open in tool →

#d83cfb · #fb3c5f

#3c5ffb · #fb3cbf · #fbd83c

Contrast

#3cfb79 as textRatioAAAA largeAAAFix
Aaon white
1.38:1failfailfail
  • AA: use #03872d as the text (4.66:1)
  • AAA: use #026421 as the text (7.38:1)
  • AA: or shift the background to #616161 (4.5:1)
  • AAA: or shift the background to #424242 (7.31:1)
Aaon black
15.27:1passpasspassPasses 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 #3cfb79 as the background.

Brands using this color

mcpConnect your agent — build around #3cfb79
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 #3cfb79 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/3cfb79-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