Color

#a4fc40

#a4fc40
hex#a4fc40
rgbrgb(164, 252, 64)
hslhsl(88, 97%, 62%)
oklchoklch(0.902 0.227 131.9)
Closest name: greenyellow (#adff2f)Relative luminance 0.7788

Tints & shades

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

Harmonies

Complementary

Open in tool →

#9840fc

#fcf640 · #46fc40

#40a4fc · #fc40a4

Split-complementary

Open in tool →

#4046fc · #f640fc

#40fcf6 · #9840fc · #fc4046

Contrast

#a4fc40 as textRatioAAAA largeAAAFix
Aaon white
1.27:1failfailfail
  • AA: use #478302 as the text (4.65:1)
  • AAA: use #366402 as the text (7.05:1)
  • AA: or shift the background to #666666 (4.53:1)
  • AAA: or shift the background to #474747 (7.33:1)
Aaon black
16.58:1passpasspassPasses 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 #a4fc40 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 #a4fc40
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 #a4fc40 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/a4fc40-aebea2-4e51df-212d1f-f1f1e9?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