Color

#3ca1aa

#3ca1aa
hex#3ca1aa
rgbrgb(60, 161, 170)
hslhsl(185, 48%, 45%)
oklchoklch(0.655 0.092 203.5)
Closest name: Baltic (#279d9f)Relative luminance 0.2935

Colors that go with #3ca1aa

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 #3ca1aa

Tints & shades

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

Harmonies

Complementary

Open in tool →

#aa453c

#3caa7c · #3c6aaa

#aa3ca1 · #a1aa3c

Split-complementary

Open in tool →

#aa3c6a · #aa7c3c

#7c3caa · #aa453c · #6aaa3c

Contrast

#3ca1aa as textRatioAAAA largeAAAFix
Aaon white
3.06:1failpassfail
  • AA: use #308188 as the text (4.54:1)
  • AAA: use #246066 as the text (7.14:1)
  • AA: or shift the background to #2b2b2b (4.63:1)
Aaon black
6.87:1passpassfail
  • AAA: use #3da4ae as the text (7.12:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #3ca1aa 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

#3ca1aa reads as cool, modern. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #3ca1aa
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 #3ca1aa and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/3ca1aa-a2b8be-df4e88-1f262d-e9f1ee?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