Color

#3fcfae

#3fcfae
hex#3fcfae
rgbrgb(63, 207, 174)
hslhsl(166, 60%, 53%)
oklchoklch(0.771 0.13 174)
Closest name: mediumaquamarine (#66cdaa)Relative luminance 0.4874

Colors that go with #3fcfae

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.

Tints & shades

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

Harmonies

Complementary

Open in tool →

#cf3f61

#3fcf66 · #3fa9cf

#ae3fcf · #cfae3f

Split-complementary

Open in tool →

#cf3fa9 · #cf663f

#663fcf · #cf3f61 · #a9cf3f

Contrast

#3fcfae as textRatioAAAA largeAAAFix
Aaon white
1.95:1failfailfail
  • AA: use #21836c as the text (4.64:1)
  • AAA: use #186251 as the text (7.23:1)
  • AA: or shift the background to #4a4a4a (4.54:1)
  • AAA: or shift the background to #2b2b2b (7.25:1)
Aaon black
10.75:1passpasspassPasses 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 #3fcfae 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 #3fcfae
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 #3fcfae and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/3fcfae-a2bebb-d459b1-1f2a2d-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