Color

#40f2d1

#40f2d1
hex#40f2d1
rgbrgb(64, 242, 209)
hslhsl(169, 87%, 60%)
oklchoklch(0.866 0.147 177)
Closest name: Frozen Boubble (#00eedd)Relative luminance 0.692

Colors that go with #40f2d1

Charcoal, Crimson and Deep Sky 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 →

#f24061

#40f278 · #40baf2

#d140f2 · #f2d140

Split-complementary

Open in tool →

#f240ba · #f27840

#7840f2 · #f24061 · #baf240

Contrast

#40f2d1 as textRatioAAAA largeAAAFix
Aaon white
1.42:1failfailfail
  • AA: use #09866f as the text (4.51:1)
  • AAA: use #076453 as the text (7.1:1)
  • AA: or shift the background to #5e5e5e (4.58:1)
  • AAA: or shift the background to #424242 (7.1:1)
Aaon black
14.84:1passpasspassPasses 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 #40f2d1 as the background.

Brands using this color

mcpConnect your agent — build around #40f2d1
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 #40f2d1 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/40f2d1-a2bebc-d459ab-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