Color

#3ca9af

#3ca9af
hex#3ca9af
rgbrgb(60, 169, 175)
hslhsl(183, 49%, 46%)
oklchoklch(0.676 0.097 200.3)
Closest name: Atlas Cedar (#5ca0a7)Relative luminance 0.3243

Colors that go with #3ca9af

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 #3ca9af

Tints & shades

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

Harmonies

Complementary

Open in tool →

#af423c

#3caf7b · #3c70af

#af3ca9 · #a9af3c

Split-complementary

Open in tool →

#af3c70 · #af7b3c

#7b3caf · #af423c · #70af3c

Contrast

#3ca9af as textRatioAAAA largeAAAFix
Aaon white
2.81:1failfailfail
  • AA: use #2e8185 as the text (4.57:1)
  • AAA: use #226063 as the text (7.19:1)
  • AA: or shift the background to #333333 (4.5:1)
  • AAA: or shift the background to #0a0a0a (7.06:1)
Aaon black
7.49:1passpasspassPasses 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 #3ca9af 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

#3ca9af reads as cool, modern. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #3ca9af
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 #3ca9af and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/3ca9af-a2b9be-d4598e-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