Color

#4ef954

#4ef954
hex#4ef954
rgbrgb(78, 249, 84)
hslhsl(122, 93%, 64%)
oklchoklch(0.864 0.248 143.5)
Closest name: Cathode Green (#00ff55)Relative luminance 0.7001

Colors that go with #4ef954

Violet, Deep Sky Blue 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 →

#f94ef3

#9ef94e · #4ef9a9

#544ef9 · #f9544e

Split-complementary

Open in tool →

#a94ef9 · #f94e9e

#4e9ef9 · #f94ef3 · #f9a94e

Contrast

#4ef954 as textRatioAAAA largeAAAFix
Aaon white
1.4:1failfailfail
  • AA: use #058a09 as the text (4.52:1)
  • AAA: use #046707 as the text (7.12:1)
  • AA: or shift the background to #5e5e5e (4.63:1)
  • AAA: or shift the background to #424242 (7.18:1)
Aaon black
15:1passpasspassPasses 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 #4ef954 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 #4ef954
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 #4ef954 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/4ef954-a2bea6-9e4edf-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