Color

#3aaacf

#3aaacf
hex#3aaacf
rgbrgb(58, 170, 207)
hslhsl(195, 61%, 52%)
oklchoklch(0.691 0.112 224.2)
Closest name: Aquarius (#2db0ce)Relative luminance 0.3415

Colors that go with #3aaacf

Charcoal, Terracotta and Amber 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 →

#cf5f3a

#3acfaa · #3a5fcf

#cf3aaa · #aacf3a

Split-complementary

Open in tool →

#cf3a5f · #cfaa3a

#aa3acf · #cf5f3a · #5fcf3a

Contrast

#3aaacf as textRatioAAAA largeAAAFix
Aaon white
2.68:1failfailfail
  • AA: use #267e9c as the text (4.62:1)
  • AAA: use #1c5d73 as the text (7.34:1)
  • AA: or shift the background to #363636 (4.51:1)
  • AAA: or shift the background to #0f0f0f (7.15:1)
Aaon black
7.83:1passpasspassPasses 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 #3aaacf as the background.

Brands using this color

Fonts for this mood

#3aaacf reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

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

tool url/palettes/new/3aaacf-9cb5c4-df4e70-1f242d-e9f1ef?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