Color

#4ef74b

#4ef74b
hex#4ef74b
rgbrgb(78, 247, 75)
hslhsl(119, 91%, 63%)
oklchoklch(0.858 0.252 142.8)
Closest name: Cathode Green (#00ff55)Relative luminance 0.6865

Tints & shades

Every swatch is its own page — click any to analyze it.

Harmonies

Complementary

Open in tool →

#f44bf7

#a4f74b · #4bf79e

#4b4ef7 · #f74b4e

Split-complementary

Open in tool →

#9e4bf7 · #f74ba4

#4ba4f7 · #f44bf7 · #f79e4b

Contrast

#4ef74b as textRatioAAAA largeAAAFix
Aaon white
1.43:1failfailfail
  • AA: use #098806 as the text (4.63:1)
  • AAA: use #066605 as the text (7.22:1)
  • AA: or shift the background to #5e5e5e (4.55:1)
  • AAA: or shift the background to #424242 (7.05:1)
Aaon black
14.73:1passpasspassPasses 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 #4ef74b 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 #4ef74b
live endpoint

Point any MCP client at the shared colors endpoint and your agent gets the same engine as this page — generate_palette, check_contrast, analyze_color — read-only, no key. Every palette it proposes comes with a /palettes/new/… link: open it, lock what you like, paste the link back.

endpointhttps://mcp.brandsweets.com/colors/mcp
claude mcp add --transport http brandsweets-colors https://mcp.brandsweets.com/colors/mcp
try this prompt

analyze #4ef74b and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/4ef74b-a2bea5-964edf-1f2d25-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