Color

#40bfa6

#40bfa6
hex#40bfa6
rgbrgb(64, 191, 166)
hslhsl(168, 50%, 50%)
oklchoklch(0.729 0.116 177.1)
Closest name: Emerald Bliss (#4cbdac)Relative luminance 0.411

Colors that go with #40bfa6

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 →

#bf4059

#40bf66 · #4099bf

#a640bf · #bfa640

Split-complementary

Open in tool →

#bf4099 · #bf6640

#6640bf · #bf4059 · #99bf40

Contrast

#40bfa6 as textRatioAAAA largeAAAFix
Aaon white
2.28:1failfailfail
  • AA: use #2b8271 as the text (4.63:1)
  • AAA: use #216356 as the text (7.04:1)
  • AA: or shift the background to #404040 (4.55:1)
  • AAA: or shift the background to #212121 (7.07:1)
Aaon black
9.22:1passpasspassPasses 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 #40bfa6 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 #40bfa6
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 #40bfa6 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/40bfa6-a2bebc-d459ad-1f2a2d-e9f1ec?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