Color

#3ba9ab

#3ba9ab
hex#3ba9ab
rgbrgb(59, 169, 171)
hslhsl(181, 49%, 45%)
oklchoklch(0.675 0.097 196.8)
Closest name: lightseagreen (#20b2aa)Relative luminance 0.3225

Colors that go with #3ba9ab

Charcoal, Tomato and Copper 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.

Real palettes that use #3ba9ab

Tints & shades

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

Harmonies

Complementary

Open in tool →

#ab3c3b

#3bab75 · #3b71ab

#ab3ba9 · #a9ab3b

Split-complementary

Open in tool →

#ab3b71 · #ab753b

#753bab · #ab3c3b · #71ab3b

Contrast

#3ba9ab as textRatioAAAA largeAAAFix
Aaon white
2.82:1failfailfail
  • AA: use #2c8081 as the text (4.65:1)
  • AAA: use #226263 as the text (7.01:1)
  • AA: or shift the background to #303030 (4.68:1)
  • AAA: or shift the background to #0a0a0a (7.02:1)
Aaon black
7.45:1passpasspassPasses 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 #3ba9ab as the background.

Brands using this color

No public brand in the corpus uses this exact color yet. Extract a brand to add one.

Fonts for this mood

#3ba9ab reads as cool, modern. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #3ba9ab
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 #3ba9ab and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/3ba9ab-a2babe-d45992-1f272d-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