Color

#40c2ce

#40c2ce
hex#40c2ce
rgbrgb(64, 194, 206)
hslhsl(185, 59%, 53%)
oklchoklch(0.749 0.111 204)
Closest name: darkturquoise (#00ced1)Relative luminance 0.4413

Colors that go with #40c2ce

Charcoal, Blue and Dark Orange 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 →

#ce4c40

#40ce93 · #407bce

#ce40c2 · #c2ce40

Split-complementary

Open in tool →

#ce407b · #ce9340

#9340ce · #ce4c40 · #7bce40

Contrast

#40c2ce as textRatioAAAA largeAAAFix
Aaon white
2.14:1failfailfail
  • AA: use #24818a as the text (4.58:1)
  • AAA: use #1a5f65 as the text (7.32:1)
  • AA: or shift the background to #424242 (4.7:1)
  • AAA: or shift the background to #262626 (7.08:1)
Aaon black
9.83:1passpasspassPasses 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 #40c2ce as the background.

Brands using this color

Fonts for this mood

#40c2ce reads as cool, modern. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #40c2ce
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 #40c2ce and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/40c2ce-a2b8be-df4e88-1f262d-e9f1ee?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