Color

#3bd8de

#3bd8de
hex#3bd8de
rgbrgb(59, 216, 222)
hslhsl(182, 71%, 55%)
oklchoklch(0.807 0.125 198.9)
Closest name: mediumturquoise (#48d1cc)Relative luminance 0.5532

Colors that go with #3bd8de

Charcoal, Light Coral and Crimson 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 →

#de403b

#3bde92 · #3b87de

#de3bd8 · #d8de3b

Split-complementary

Open in tool →

#de3b87 · #de923b

#923bde · #de403b · #87de3b

Contrast

#3bd8de as textRatioAAAA largeAAAFix
Aaon white
1.74:1failfailfail
  • AA: use #178387 as the text (4.53:1)
  • AAA: use #116264 as the text (7.11:1)
  • AA: or shift the background to #4f4f4f (4.71:1)
  • AAA: or shift the background to #333333 (7.26:1)
Aaon black
12.06:1passpasspassPasses 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 #3bd8de as the background.

Brands using this color

Fonts for this mood

#3bd8de reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #3bd8de
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 #3bd8de and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/3bd8de-a2babe-d45990-1f272d-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