The hex color #259efc is a light color. The web-safe version is Hex
#3399FF. A complementary color is
#DA6103. The grayscale version is
#959595. A 20% lighter version of the original color is
#58D1FF, and Hex
#006BC9 is the 20% darker color. If the color is saturated by 10%, you get
#1A9FFF. If the color is desaturated by 10%, the color
#309DF2 is obtained.