The best replacement for aqua is teal.

The best alternatives to aqua are rated as following:
★★★★★  teal
★★★★★  turquoise
★★★  kayfun
★★  terra
★★  vanitas
★★  cyan
★  agua
★  tiffany blue
★  teal color
★  aqua
★  vanquis
★  aquamarine
★  oblix
★  kayfun 3.1
★  kraken
★  capital one
★  team magma
★  squape
★  russian 91
★  aero
  acuvue oasys
  braig
  flonase
  toy box
  trakker
  magma
  mattel
  rainbow
  secrets the vine
  nasonex
  taifun gt
  cleo
  mint green
  night and day
  terranort
  baby blue
  amidis
  seafoam
  xion

Your alternative for aqua is not listed? Suggest!
Speaking about aqua, one probably shouldn't forget about sun shanghai.

Other search terms related to aqua and their ratings are:
★★★★★ sun shanghai
★ sun
You have in mind a companion for aqua and it is not yet here? Propose!



Google Trends

Scale is based on the average worldwide traffic of aqua in all years. Click on graph for more.
aqua
teal
turquoise