The hex color #64d2f2 is a light color. The web-safe version is Hex
#66CCFF. A complementary color is
#9B2D0D. The grayscale version is
#B8B8B8. A 20% lighter version of the original color is
#97FFFF, and Hex
#319FBF is the 20% darker color. If the color is saturated by 10%, you get
#5CD5F8. If the color is desaturated by 10%, the color
#6CCFEC is obtained.