Color

#40e749

#40e749
hex#40e749
rgbrgb(64, 231, 73)
hslhsl(123, 78%, 58%)
oklchoklch(0.814 0.24 143.6)
Closest name: Alarming Slime (#2ce335)Relative luminance 0.5872

Colors that go with #40e749

Taupe, Violet and Charcoal lead the list. Each partner is a real named colour with the reason it works — a wheel relationship, a neutral that carries it, or a pairing lifted from a palette or brand system that actually shipped — and every pair opens in the palette tool.

Tints & shades

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

Harmonies

Complementary

Open in tool →

#e740df

#8ce740 · #40e79c

#4940e7 · #e74940

Split-complementary

Open in tool →

#9c40e7 · #e7408c

#408ce7 · #e740df · #e79c40

Contrast

#40e749 as textRatioAAAA largeAAAFix
Aaon white
1.65:1failfailfail
  • AA: use #118817 as the text (4.61:1)
  • AAA: use #0c6411 as the text (7.38:1)
  • AA: or shift the background to #545454 (4.6:1)
  • AAA: or shift the background to #383838 (7.12:1)
Aaon black
12.74:1passpasspassPasses 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 #40e749 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 #40e749
live endpoint

Point any MCP client at the shared colors endpoint and your agent gets the same engine as this page — direct_palette, edit_direction, check_palette, check_contrast — read-only, no key. Every direction it proposes comes with a /colors/d/… link: open it, lock what you like, paste the link back, and the agent edits rather than re-rolls.

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

analyze #40e749 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/40e749-a2bea6-a04edf-1f2d26-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