The hex color #eef660 is a light color. The web-safe version is Hex
#FFFF66. A complementary color is
#11099F. The grayscale version is
#C1C1C1. A 20% lighter version of the original color is
#FFFF93, and Hex
#BBC32D is the 20% darker color. If the color is saturated by 10%, you get
#F2FB56. If the color is desaturated by 10%, the color
#EAF16A is obtained.