Color

#3dabc7

#3dabc7
hex#3dabc7
rgbrgb(61, 171, 199)
hslhsl(192, 55%, 51%)
oklchoklch(0.691 0.105 218.2)
Closest name: Aquarius (#2db0ce)Relative luminance 0.3424

Colors that go with #3dabc7

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.

Tints & shades

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

Harmonies

Complementary

Open in tool →

#c7593d

#3dc79e · #3d67c7

#c73dab · #abc73d

Split-complementary

Open in tool →

#c73d67 · #c79e3d

#9e3dc7 · #c7593d · #67c73d

Contrast

#3dabc7 as textRatioAAAA largeAAAFix
Aaon white
2.68:1failfailfail
  • AA: use #2a7d92 as the text (4.72:1)
  • AAA: use #205f6f as the text (7.17:1)
  • AA: or shift the background to #363636 (4.52:1)
  • AAA: or shift the background to #121212 (7:1)
Aaon black
7.85:1passpasspassPasses 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 #3dabc7 as the background.

Brands using this color

Fonts for this mood

#3dabc7 reads as cool, modern. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #3dabc7
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 #3dabc7 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/3dabc7-a2b5be-df4e77-1f242d-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