Color

#3da9c2

#3da9c2
hex#3da9c2
rgbrgb(61, 169, 194)
hslhsl(191, 52%, 50%)
oklchoklch(0.684 0.102 216.2)
Closest name: Aquarius (#2db0ce)Relative luminance 0.3326

Colors that go with #3da9c2

Charcoal, Tomato 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.

Real palettes that use #3da9c2

Tints & shades

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

Harmonies

Complementary

Open in tool →

#c2563d

#3dc298 · #3d67c2

#c23da9 · #a9c23d

Split-complementary

Open in tool →

#c23d67 · #c2983d

#983dc2 · #c2563d · #67c23d

Contrast

#3da9c2 as textRatioAAAA largeAAAFix
Aaon white
2.74:1failfailfail
  • AA: use #2d7d8f as the text (4.73:1)
  • AAA: use #225f6d as the text (7.18:1)
  • AA: or shift the background to #333333 (4.6:1)
  • AAA: or shift the background to #0d0d0d (7.08:1)
Aaon black
7.65:1passpasspassPasses 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 #3da9c2 as the background.

Brands using this color

Fonts for this mood

#3da9c2 reads as cool, modern. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #3da9c2
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 #3da9c2 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/3da9c2-a2b6be-df4e7a-1f252d-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