Color

#4ff11e

#4ff11e
hex#4ff11e
rgbrgb(79, 241, 30)
hslhsl(106, 88%, 53%)
oklchoklch(0.84 0.265 140.3)
Closest name: Becquerel (#4bec13)Relative luminance 0.6467

Colors that go with #4ff11e

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 →

#bf1ef1

#b8f11e · #1ef156

#1e4ff1 · #f11e4f

Split-complementary

Open in tool →

#561ef1 · #f11eb8

#1eb8f1 · #bf1ef1 · #f1561e

Contrast

#4ff11e as textRatioAAAA largeAAAFix
Aaon white
1.51:1failfailfail
  • AA: use #268609 as the text (4.67:1)
  • AAA: use #1c6506 as the text (7.21:1)
  • AA: or shift the background to #595959 (4.65:1)
  • AAA: or shift the background to #3d3d3d (7.21:1)
Aaon black
13.93:1passpasspassPasses 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 #4ff11e 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 #4ff11e
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 #4ff11e and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/4ff11e-a5bea2-774edf-1f2d22-eff1e9?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