Color

#4fee51

#4fee51
hex#4fee51
rgbrgb(79, 238, 81)
hslhsl(121, 82%, 62%)
oklchoklch(0.836 0.238 143.2)
Closest name: Becquerel (#4bec13)Relative luminance 0.6341

Colors that go with #4fee51

Taupe, Violet 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 →

#ee4feb

#9bee4f · #4feea1

#514fee · #ee514f

Split-complementary

Open in tool →

#a14fee · #ee4f9b

#4f9bee · #ee4feb · #eea14f

Contrast

#4fee51 as textRatioAAAA largeAAAFix
Aaon white
1.53:1failfailfail
  • AA: use #0d870f as the text (4.68:1)
  • AAA: use #0a660c as the text (7.19:1)
  • AA: or shift the background to #595959 (4.56:1)
  • AAA: or shift the background to #3d3d3d (7.08:1)
Aaon black
13.68:1passpasspassPasses 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 #4fee51 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 #4fee51
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 #4fee51 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/4fee51-a2bea6-9b4edf-1f2d26-edf1e9?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