Color

#3fee4d

#3fee4d
hex#3fee4d
rgbrgb(63, 238, 77)
hslhsl(125, 84%, 59%)
oklchoklch(0.832 0.245 144)
Closest name: Becquerel (#4bec13)Relative luminance 0.6274

Colors that go with #3fee4d

Violet, Deep Sky Blue and Royal 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 →

#ee3fe0

#88ee3f · #3feea5

#4d3fee · #ee4d3f

Split-complementary

Open in tool →

#a53fee · #ee3f88

#3f88ee · #ee3fe0 · #eea53f

Contrast

#3fee4d as textRatioAAAA largeAAAFix
Aaon white
1.55:1failfailfail
  • AA: use #0c8816 as the text (4.62:1)
  • AAA: use #096711 as the text (7.1:1)
  • AA: or shift the background to #595959 (4.52:1)
  • AAA: or shift the background to #3d3d3d (7.01:1)
Aaon black
13.55:1passpasspassPasses 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 #3fee4d 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 #3fee4d
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 #3fee4d and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/3fee4d-a2bea7-a54edf-1f2d26-ecf1e9?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