Color

#4ff740

#4ff740
hex#4ff740
rgbrgb(79, 247, 64)
hslhsl(115, 92%, 61%)
oklchoklch(0.857 0.258 141.9)
Closest name: Cathode Green (#00ff55)Relative luminance 0.6855

Colors that go with #4ff740

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 →

#e840f7

#abf740 · #40f78c

#404ff7 · #f7404f

Split-complementary

Open in tool →

#8c40f7 · #f740ab

#40abf7 · #e840f7 · #f78c40

Contrast

#4ff740 as textRatioAAAA largeAAAFix
Aaon white
1.43:1failfailfail
  • AA: use #118906 as the text (4.56:1)
  • AAA: use #0c6704 as the text (7.1:1)
  • AA: or shift the background to #5e5e5e (4.54:1)
  • AAA: or shift the background to #424242 (7.04:1)
Aaon black
14.71:1passpasspassPasses 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 #4ff740 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 #4ff740
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 #4ff740 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/4ff740-a2bea3-8d4edf-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