Color

#3fee85

#3fee85
hex#3fee85
rgbrgb(63, 238, 133)
hslhsl(144, 84%, 59%)
oklchoklch(0.839 0.201 151.9)
Closest name: Emerald Ice Palace (#2af589)Relative luminance 0.639

Tints & shades

Every swatch is its own page — click any to analyze it.

Harmonies

Complementary

Open in tool →

#ee3fa8

#50ee3f · #3feedd

#853fee · #ee853f

Split-complementary

Open in tool →

#dd3fee · #ee3f50

#3f50ee · #ee3fa8 · #eedd3f

Contrast

#3fee85 as textRatioAAAA largeAAAFix
Aaon white
1.52:1failfailfail
  • AA: use #0c883e as the text (4.56:1)
  • AAA: use #09672f as the text (7.02:1)
  • AA: or shift the background to #595959 (4.6:1)
  • AAA: or shift the background to #3d3d3d (7.13:1)
Aaon black
13.78:1passpasspassPasses 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 #3fee85 as the background.

Brands using this color

mcpConnect your agent — build around #3fee85
live endpoint

Point any MCP client at the shared colors endpoint and your agent gets the same engine as this page — generate_palette, check_contrast, analyze_color — read-only, no key. Every palette it proposes comes with a /palettes/new/… link: open it, lock what you like, paste the link back.

endpointhttps://mcp.brandsweets.com/colors/mcp
claude mcp add --transport http brandsweets-colors https://mcp.brandsweets.com/colors/mcp
try this prompt

analyze #3fee85 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/3fee85-a2beb0-ca59d4-1f2d2b-eaf1e9?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