The hex color #e3f3e6 is a light color. The web-safe version is Hex
#CCFFFF. A complementary color is
#1C0C19. The grayscale version is
#E9E9E9. A 20% lighter version of the original color is
#FFFFFF, and Hex
#B0C0B3 is the 20% darker color. If the color is saturated by 10%, you get
#E2F4E6. If the color is desaturated by 10%, the color
#E4F2E6 is obtained.