Color

#4fef3e

#4fef3e
hex#4fef3e
rgbrgb(79, 239, 62)
hslhsl(114, 85%, 59%)
oklchoklch(0.837 0.25 141.8)
Closest name: Becquerel (#4bec13)Relative luminance 0.6374

Colors that go with #4fef3e

Deep Sky Blue, Violet and Hot Pink 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 →

#de3eef

#a8ef3e · #3eef85

#3e4fef · #ef3e4f

Split-complementary

Open in tool →

#853eef · #ef3ea8

#3ea8ef · #de3eef · #ef853e

Contrast

#4fef3e as textRatioAAAA largeAAAFix
Aaon white
1.53:1failfailfail
  • AA: use #18890b as the text (4.54:1)
  • AAA: use #116308 as the text (7.47:1)
  • AA: or shift the background to #595959 (4.59:1)
  • AAA: or shift the background to #3d3d3d (7.11:1)
Aaon black
13.75:1passpasspassPasses 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 #4fef3e 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 #4fef3e
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 #4fef3e and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/4fef3e-a2bea2-8a4edf-1f2d24-eef1e9?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