Color

#3bd3de

#3bd3de
hex#3bd3de
rgbrgb(59, 211, 222)
hslhsl(184, 71%, 55%)
oklchoklch(0.795 0.123 202.3)
Closest name: mediumturquoise (#48d1cc)Relative luminance 0.5279

Colors that go with #3bd3de

Charcoal, Light Coral 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 →

#de463b

#3bde97 · #3b81de

#de3bd3 · #d3de3b

Split-complementary

Open in tool →

#de3b81 · #de973b

#973bde · #de463b · #81de3b

Contrast

#3bd3de as textRatioAAAA largeAAAFix
Aaon white
1.82:1failfailfail
  • AA: use #178087 as the text (4.69:1)
  • AAA: use #115f64 as the text (7.38:1)
  • AA: or shift the background to #4f4f4f (4.51:1)
  • AAA: or shift the background to #303030 (7.26:1)
Aaon black
11.56:1passpasspassPasses 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 #3bd3de as the background.

Brands using this color

Fonts for this mood

#3bd3de reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #3bd3de
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 #3bd3de and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/3bd3de-a2b9be-df4e8a-1f262d-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