The hex color #238AF3 is a dark color. The web-safe version is Hex
#3399FF. A complementary color is
#DC750C. The grayscale version is
#8B8B8B. A 20% lighter version of the original color is
#56BDFF, and Hex
#0057C0 is the 20% darker color. If the color is saturated by 10%, you get
#198AFD. If the color is desaturated by 10%, the color
#2D8AE9 is obtained.