The hex color #28d25a is a light color. The web-safe version is Hex
#33CC66. A complementary color is
#D72DA5. The grayscale version is
#717171. A 20% lighter version of the original color is
#5BFF8D, and Hex
#009F27 is the 20% darker color. If the color is saturated by 10%, you get
#21DC58. If the color is desaturated by 10%, the color
#2FC85C is obtained.