Color

#4eef2a

#4eef2a
hex#4eef2a
rgbrgb(78, 239, 42)
hslhsl(109, 86%, 55%)
oklchoklch(0.836 0.259 140.8)
Closest name: Becquerel (#4bec13)Relative luminance 0.6352

Colors that go with #4eef2a

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 →

#cb2aef

#b0ef2a · #2aef68

#2a4eef · #ef2a4e

Split-complementary

Open in tool →

#682aef · #ef2ab0

#2ab0ef · #cb2aef · #ef682a

Contrast

#4eef2a as textRatioAAAA largeAAAFix
Aaon white
1.53:1failfailfail
  • AA: use #21850a as the text (4.75:1)
  • AAA: use #186407 as the text (7.33:1)
  • AA: or shift the background to #595959 (4.57:1)
  • AAA: or shift the background to #3d3d3d (7.09:1)
Aaon black
13.7:1passpasspassPasses 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 #4eef2a 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 #4eef2a
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 #4eef2a and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/4eef2a-a4bea2-7e4edf-1f2d23-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