Color

#3fcfab

#3fcfab
hex#3fcfab
rgbrgb(63, 207, 171)
hslhsl(165, 60%, 53%)
oklchoklch(0.77 0.132 172.3)
Closest name: mediumaquamarine (#66cdaa)Relative luminance 0.4862

Colors that go with #3fcfab

Charcoal, Hot Pink and Mustard Yellow 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.

Real palettes that use #3fcfab

Tints & shades

Every swatch is its own page — click any to analyze it.

Harmonies

Complementary

Open in tool →

#cf3f63

#3fcf63 · #3fabcf

#ab3fcf · #cfab3f

Split-complementary

Open in tool →

#cf3fab · #cf633f

#633fcf · #cf3f63 · #abcf3f

Contrast

#3fcfab as textRatioAAAA largeAAAFix
Aaon white
1.96:1failfailfail
  • AA: use #21836a as the text (4.65:1)
  • AAA: use #186250 as the text (7.24:1)
  • AA: or shift the background to #4a4a4a (4.53:1)
  • AAA: or shift the background to #2b2b2b (7.23:1)
Aaon black
10.72:1passpasspassPasses 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 #3fcfab 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 #3fcfab
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 #3fcfab and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/3fcfab-a2beba-d459b3-1f2b2d-e9f1eb?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