Color

#40ba8f

#40ba8f
hex#40ba8f
rgbrgb(64, 186, 143)
hslhsl(159, 49%, 49%)
oklchoklch(0.71 0.126 165.8)
Closest name: Bleached Olive (#55bb88)Relative luminance 0.3819

Colors that go with #40ba8f

Charcoal, Hot Pink and Midnight Blue 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 →

#ba406b

#40ba52 · #40a8ba

#8f40ba · #ba8f40

Split-complementary

Open in tool →

#ba40a8 · #ba5240

#5240ba · #ba406b · #a8ba40

Contrast

#40ba8f as textRatioAAAA largeAAAFix
Aaon white
2.43:1failfailfail
  • AA: use #2e8566 as the text (4.5:1)
  • AAA: use #22634c as the text (7.1:1)
  • AA: or shift the background to #3b3b3b (4.61:1)
  • AAA: or shift the background to #1c1c1c (7.01:1)
Aaon black
8.64:1passpasspassPasses 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 #40ba8f as the background.

Brands using this color

mcpConnect your agent — build around #40ba8f
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 #40ba8f and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/40ba8f-a2beb8-d459c0-1f2c2d-e9f1eb?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