The hex color #42c25d is a light color. The web-safe version is Hex
#33CC66. A complementary color is
#BD3DA2. The grayscale version is
#767676. A 20% lighter version of the original color is
#75F590, and Hex
#0F8F2A is the 20% darker color. If the color is saturated by 10%, you get
#3DCA5B. If the color is desaturated by 10%, the color
#47BA5F is obtained.