Color

#40e7dc

#40e7dc
hex#40e7dc
rgbrgb(64, 231, 220)
hslhsl(176, 78%, 58%)
oklchoklch(0.843 0.133 188.3)
Closest name: Frozen Boubble (#00eedd)Relative luminance 0.6341

Colors that go with #40e7dc

Charcoal, Deep Sky Blue and Crimson 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 →

#e7404c

#40e789 · #409fe7

#dc40e7 · #e7dc40

Split-complementary

Open in tool →

#e7409f · #e78940

#8940e7 · #e7404c · #9fe740

Contrast

#40e7dc as textRatioAAAA largeAAAFix
Aaon white
1.53:1failfailfail
  • AA: use #10847c as the text (4.55:1)
  • AAA: use #0c5f5a as the text (7.5:1)
  • AA: or shift the background to #595959 (4.56:1)
  • AAA: or shift the background to #3d3d3d (7.08:1)
Aaon black
13.68:1passpasspassPasses 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 #40e7dc 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 #40e7dc
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 #40e7dc and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/40e7dc-a2bdbe-d4599d-1f282d-e9f1ed?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