The hex color #c5d2ef is a light color. The web-safe version is Hex
#CCCCFF. A complementary color is
#3A2D10. The grayscale version is
#D7D7D7. A 20% lighter version of the original color is
#F8FFFF, and Hex
#929FBC is the 20% darker color. If the color is saturated by 10%, you get
#C3D1F1. If the color is desaturated by 10%, the color
#C7D3ED is obtained.