Color

#40e75c

#40e75c
hex#40e75c
rgbrgb(64, 231, 92)
hslhsl(130, 78%, 58%)
oklchoklch(0.816 0.227 145.6)
Closest name: Alarming Slime (#2ce335)Relative luminance 0.5901

Tints & shades

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

Harmonies

Complementary

Open in tool →

#e740cc

#78e740 · #40e7b0

#5c40e7 · #e75c40

Split-complementary

Open in tool →

#b040e7 · #e74078

#4078e7 · #e740cc · #e7b040

Contrast

#40e75c as textRatioAAAA largeAAAFix
Aaon white
1.64:1failfailfail
  • AA: use #118825 as the text (4.59:1)
  • AAA: use #0c641b as the text (7.36:1)
  • AA: or shift the background to #545454 (4.62:1)
  • AAA: or shift the background to #383838 (7.15:1)
Aaon black
12.8:1passpasspassPasses 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 #40e75c as the background.

Brands using this color

mcpConnect your agent — build around #40e75c
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 #40e75c and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/40e75c-a2beaa-b14edf-1f2d28-ecf1e9?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