brandsweets

Color

#40e780

#40e780
hex#40e780
rgbrgb(64, 231, 128)
hslhsl(143, 78%, 58%)
oklchoklch(0.821 0.197 151.5)
Closest name: Grotesque Green (#64e986)Relative luminance 0.598
Vivid
Open in palette toolCheck contrast

Tints & shades

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

Harmonies

Complementary

Open in tool →
40e780e740a7

#e740a7

Analogous

Open in tool →
40e78054e74040e7d4

#54e740 · #40e7d4

Triadic

Open in tool →
40e7808040e7e78040

#8040e7 · #e78040

Split-complementary

Open in tool →
40e780d440e7e74054

#d440e7 · #e74054

Tetradic

Open in tool →
40e7804054e7e740a7e7d440

#4054e7 · #e740a7 · #e7d440

Contrast

#40e780 as textRatioAAAA largeAAAFix
Aaon white
1.62:1failfailfail
  • AA: use #11883f as the text (4.55:1)
  • AAA: use #0c642e as the text (7.3:1)
  • AA: or shift the background to #545454 (4.67:1)
  • AAA: or shift the background to #383838 (7.24:1)
Aaon black
12.96:1passpasspassPasses 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 #40e780 as the background.

Brands using this color

mcpConnect your agent — build around #40e780
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 #40e780 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/40e780-a2beb0-c859d4-1f2d2b-eaf1e9?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