Color

#3db2c7

#3db2c7
hex#3db2c7
rgbrgb(61, 178, 199)
hslhsl(189, 55%, 51%)
oklchoklch(0.708 0.106 212)
Closest name: Aquarius (#2db0ce)Relative luminance 0.3696

Colors that go with #3db2c7

Charcoal, Denim and Dodger Blue 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 →

#c7523d

#3dc797 · #3d6dc7

#c73db2 · #b2c73d

Split-complementary

Open in tool →

#c73d6d · #c7973d

#973dc7 · #c7523d · #6dc73d

Contrast

#3db2c7 as textRatioAAAA largeAAAFix
Aaon white
2.5:1failfailfail
  • AA: use #297f8e as the text (4.65:1)
  • AAA: use #1f5f6b as the text (7.22:1)
  • AA: or shift the background to #383838 (4.69:1)
  • AAA: or shift the background to #171717 (7.16:1)
Aaon black
8.39:1passpasspassPasses 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 #3db2c7 as the background.

Brands using this color

Fonts for this mood

#3db2c7 reads as cool, modern. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #3db2c7
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 #3db2c7 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/3db2c7-a2b7be-df4e7e-1f252d-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