The best replacement for light blue is dark blue.

The best alternatives to light blue are rated as following:
★★★★★  dark blue
★★★★★  acqua di gio
★★★★  baby blue
★★★  french blue
★★★  sky blue
★★  i love love
★  lite blue
★  viva la juicy
★  euphoria
★  turquoise
★  black light
★  cool water
  aqua di gio

Your alternative for light blue is not listed? Suggest!
Speaking about light blue, one probably shouldn't forget about dark blue.

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



Google Trends

Scale is based on the average worldwide traffic of light blue in all years. Click on graph for more.
light blue
dark blue
acqua di gio