Color

#3efefe

#3efefe
hex#3efefe
rgbrgb(62, 254, 254)
hslhsl(180, 99%, 62%)
oklchoklch(0.908 0.144 194.9)
Closest name: aqua (#00ffff)Relative luminance 0.7906

Colors that go with #3efefe

Deep Sky Blue, Charcoal and Taupe 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 →

#fe3e3e

#3efe9e · #3e9efe

#fe3efe · #fefe3e

Split-complementary

Open in tool →

#fe3e9e · #fe9e3e

#9e3efe · #fe3e3e · #9efe3e

Contrast

#3efefe as textRatioAAAA largeAAAFix
Aaon white
1.25:1failfailfail
  • AA: use #018484 as the text (4.53:1)
  • AAA: use #006060 as the text (7.39:1)
  • AA: or shift the background to #666666 (4.6:1)
  • AAA: or shift the background to #4a4a4a (7.1:1)
Aaon black
16.81:1passpasspassPasses 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 #3efefe as the background.

Brands using this color

Fonts for this mood

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

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

tool url/palettes/new/3efefe-a2bbbe-d45994-1f272d-e9f1ed?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