Color

#3acbb2

#3acbb2
hex#3acbb2
rgbrgb(58, 203, 178)
hslhsl(170, 58%, 51%)
oklchoklch(0.761 0.125 178.5)
Closest name: Cockatoo (#58c8b6)Relative luminance 0.4683

Colors that go with #3acbb2

Charcoal, Deep Sky Blue and Royal 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 →

#cb3a52

#3acb6a · #3a9acb

#b23acb · #cbb23a

Split-complementary

Open in tool →

#cb3a9a · #cb6a3a

#6a3acb · #cb3a52 · #9acb3a

Contrast

#3acbb2 as textRatioAAAA largeAAAFix
Aaon white
2.03:1failfailfail
  • AA: use #228171 as the text (4.72:1)
  • AAA: use #1a6155 as the text (7.28:1)
  • AA: or shift the background to #474747 (4.59:1)
  • AAA: or shift the background to #292929 (7.18:1)
Aaon black
10.37:1passpasspassPasses 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 #3acbb2 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 #3acbb2
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 #3acbb2 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/3acbb2-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