Color

#3acfb6

#3acfb6
hex#3acfb6
rgbrgb(58, 207, 182)
hslhsl(170, 61%, 52%)
oklchoklch(0.772 0.128 178.8)
Closest name: Cockatoo (#58c8b6)Relative luminance 0.489

Colors that go with #3acfb6

Charcoal, Crimson and Deep Sky 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 →

#cf3a53

#3acf6c · #3a9dcf

#b63acf · #cfb63a

Split-complementary

Open in tool →

#cf3a9d · #cf6c3a

#6c3acf · #cf3a53 · #9dcf3a

Contrast

#3acfb6 as textRatioAAAA largeAAAFix
Aaon white
1.95:1failfailfail
  • AA: use #208373 as the text (4.61:1)
  • AAA: use #186356 as the text (7.1:1)
  • AA: or shift the background to #4a4a4a (4.55:1)
  • AAA: or shift the background to #2b2b2b (7.27:1)
Aaon black
10.78:1passpasspassPasses 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 #3acfb6 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 #3acfb6
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 #3acfb6 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/3acfb6-a2bebd-d459a9-1f292d-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