Color

#3aaad9

#3aaad9
hex#3aaad9
rgbrgb(58, 170, 217)
hslhsl(198, 68%, 54%)
oklchoklch(0.696 0.12 230.3)
Closest name: Cousteau (#55a9d6)Relative luminance 0.3466

Colors that go with #3aaad9

Charcoal, Bronze 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 →

#d96a3a

#3ad9ba · #3a5ad9

#d93aaa · #aad93a

Split-complementary

Open in tool →

#d93a5a · #d9ba3a

#ba3ad9 · #d96a3a · #5ad93a

Contrast

#3aaad9 as textRatioAAAA largeAAAFix
Aaon white
2.65:1failfailfail
  • AA: use #207fa7 as the text (4.51:1)
  • AAA: use #185e7c as the text (7.16:1)
  • AA: or shift the background to #363636 (4.56:1)
  • AAA: or shift the background to #121212 (7.08:1)
Aaon black
7.93:1passpasspassPasses 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 #3aaad9 as the background.

Brands using this color

Fonts for this mood

#3aaad9 reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #3aaad9
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 #3aaad9 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/3aaad9-9cb3c4-df4e69-1f232d-e9f1f0?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