Color

#40bf84

#40bf84
hex#40bf84
rgbrgb(64, 191, 132)
hslhsl(152, 50%, 50%)
oklchoklch(0.72 0.141 159.2)
Closest name: Bleached Olive (#55bb88)Relative luminance 0.4002

Colors that go with #40bf84

Charcoal, Hot Pink and Dark Olive Green 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 →

#bf407b

#40bf44 · #40bbbf

#8440bf · #bf8440

Split-complementary

Open in tool →

#bf40bb · #bf4440

#4440bf · #bf407b · #bbbf40

Contrast

#40bf84 as textRatioAAAA largeAAAFix
Aaon white
2.33:1failfailfail
  • AA: use #2b825a as the text (4.73:1)
  • AAA: use #216345 as the text (7.15:1)
  • AA: or shift the background to #3d3d3d (4.66:1)
  • AAA: or shift the background to #1f1f1f (7.07:1)
Aaon black
9:1passpasspassPasses 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 #40bf84 as the background.

Brands using this color

mcpConnect your agent — build around #40bf84
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 #40bf84 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/40bf84-a2beb4-d459ce-1f2d2d-e9f1ea?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