Paper White 1590 by Benjamin Moore is a similar color.

That first person answered months ago so she may not even see your response but I wonder why she would answer with such an obviously wrong choice. I know color is hard to perceive on a computer--but I just looked up both colors and seaspray is very different from paper white. Oh well maybe she was just trying to be helpful. I much prefer seaspray personally.

Is this paint color on the green side or just gray. Hard to tell on the computer.

There is no gray in Seaspray but a definate greenish undertone, Benjamin moore's paint chip is the exact colour however under certain light and time of day it can deepen or lighten in it's hue.

Beautiful design! Very calming.