Color

#3fe476

#3fe476
hex#3fe476
rgbrgb(63, 228, 118)
hslhsl(140, 75%, 57%)
oklchoklch(0.811 0.202 149.9)
Closest name: Grotesque Green (#64e986)Relative luminance 0.5785

Colors that go with #3fe476

Deep Sky Blue, Taupe and Violet 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 →

#e43fad

#5be43f · #3fe4c8

#763fe4 · #e4763f

Split-complementary

Open in tool →

#c83fe4 · #e43f5b

#3f5be4 · #e43fad · #e4c83f

Contrast

#3fe476 as textRatioAAAA largeAAAFix
Aaon white
1.67:1failfailfail
  • AA: use #138639 as the text (4.67:1)
  • AAA: use #0f672c as the text (7.01:1)
  • AA: or shift the background to #545454 (4.53:1)
  • AAA: or shift the background to #383838 (7.02:1)
Aaon black
12.57:1passpasspassPasses 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 #3fe476 as the background.

Brands using this color

mcpConnect your agent — build around #3fe476
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 #3fe476 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/3fe476-a2beaf-c259d4-1f2d2a-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