Color

#40e7cc

#40e7cc
hex#40e7cc
rgbrgb(64, 231, 204)
hslhsl(170, 78%, 58%)
oklchoklch(0.838 0.139 179.3)
Closest name: Fake Jade (#13eac9)Relative luminance 0.626

Colors that go with #40e7cc

Charcoal, Deep Sky Blue and Taupe 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 →

#e7405c

#40e778 · #40b0e7

#cc40e7 · #e7cc40

Split-complementary

Open in tool →

#e740b0 · #e77840

#7840e7 · #e7405c · #b0e740

Contrast

#40e7cc as textRatioAAAA largeAAAFix
Aaon white
1.55:1failfailfail
  • AA: use #108470 as the text (4.61:1)
  • AAA: use #0c6455 as the text (7.07:1)
  • AA: or shift the background to #595959 (4.51:1)
  • AAA: or shift the background to #3b3b3b (7.21:1)
Aaon black
13.52:1passpasspassPasses 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 #40e7cc 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 #40e7cc
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 #40e7cc and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/40e7cc-a2bebd-d459a9-1f292d-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