brandsweets

Color

#40e751

#40e751
hex#40e751
rgbrgb(64, 231, 81)
hslhsl(126, 78%, 58%)
oklchoklch(0.815 0.234 144.4)
Closest name: Alarming Slime (#2ce335)Relative luminance 0.5884
Vivid
Open in palette toolCheck contrast

Tints & shades

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

Harmonies

Complementary

Open in tool →
40e751e740d7

#e740d7

Analogous

Open in tool →
40e75183e74040e7a5

#83e740 · #40e7a5

Triadic

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40e7515140e7e75140

#5140e7 · #e75140

Split-complementary

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40e751a540e7e74083

#a540e7 · #e74083

Tetradic

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40e7514083e7e740d7e7a540

#4083e7 · #e740d7 · #e7a540

Contrast

#40e751 as textRatioAAAA largeAAAFix
Aaon white
1.64:1failfailfail
  • AA: use #11881d as the text (4.6:1)
  • AAA: use #0c6415 as the text (7.37:1)
  • AA: or shift the background to #545454 (4.6:1)
  • AAA: or shift the background to #383838 (7.13:1)
Aaon black
12.77:1passpasspassPasses 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 #40e751 as the background.

Brands using this color

mcpConnect your agent — build around #40e751
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 #40e751 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/40e751-a2bea8-a74edf-1f2d27-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