Color

#3fe4d9

#3fe4d9
hex#3fe4d9
rgbrgb(63, 228, 217)
hslhsl(176, 75%, 57%)
oklchoklch(0.835 0.132 188.3)
Closest name: turquoise (#40e0d0)Relative luminance 0.6155

Colors that go with #3fe4d9

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 →

#e43f4a

#3fe486 · #3f9ce4

#d93fe4 · #e4d93f

Split-complementary

Open in tool →

#e43f9c · #e4863f

#863fe4 · #e43f4a · #9ce43f

Contrast

#3fe4d9 as textRatioAAAA largeAAAFix
Aaon white
1.58:1failfailfail
  • AA: use #12817a as the text (4.72:1)
  • AAA: use #0e625d as the text (7.18:1)
  • AA: or shift the background to #575757 (4.58:1)
  • AAA: or shift the background to #3b3b3b (7.1:1)
Aaon black
13.31:1passpasspassPasses 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 #3fe4d9 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 #3fe4d9
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 #3fe4d9 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/3fe4d9-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