Color

#4eef81

#4eef81
hex#4eef81
rgbrgb(78, 239, 129)
hslhsl(139, 83%, 62%)
oklchoklch(0.844 0.201 150)
Closest name: Emerald Ice Palace (#2af589)Relative luminance 0.6494

Tints & shades

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

Harmonies

Complementary

Open in tool →

#ef4ebc

#6bef4e · #4eefd1

#814eef · #ef814e

Split-complementary

Open in tool →

#d14eef · #ef4e6b

#4e6bef · #ef4ebc · #efd14e

Contrast

#4eef81 as textRatioAAAA largeAAAFix
Aaon white
1.5:1failfailfail
  • AA: use #0d8733 as the text (4.64:1)
  • AAA: use #0a6727 as the text (7.04:1)
  • AA: or shift the background to #595959 (4.67:1)
  • AAA: or shift the background to #3d3d3d (7.24:1)
Aaon black
13.99:1passpasspassPasses 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 #4eef81 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 #4eef81
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 #4eef81 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/4eef81-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