Color

#3fc6ab

#3fc6ab
hex#3fc6ab
rgbrgb(63, 198, 171)
hslhsl(168, 54%, 51%)
oklchoklch(0.747 0.122 176.6)
Closest name: Cockatoo (#58c8b6)Relative luminance 0.4439

Colors that go with #3fc6ab

Charcoal, Hot Pink and Blue 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 →

#c63f5a

#3fc667 · #3f9dc6

#ab3fc6 · #c6ab3f

Split-complementary

Open in tool →

#c63f9d · #c6673f

#673fc6 · #c63f5a · #9dc63f

Contrast

#3fc6ab as textRatioAAAA largeAAAFix
Aaon white
2.13:1failfailfail
  • AA: use #27826f as the text (4.66:1)
  • AAA: use #1d6254 as the text (7.17:1)
  • AA: or shift the background to #454545 (4.51:1)
  • AAA: or shift the background to #262626 (7.12:1)
Aaon black
9.88:1passpasspassPasses 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 #3fc6ab 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 #3fc6ab
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 #3fc6ab and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/3fc6ab-a2bebc-d459ad-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