The hex color #450adc is a dark color. The web-safe version is Hex
#3300CC. A complementary color is
#BAF523. The grayscale version is
#646464. A 20% lighter version of the original color is
#783DFF, and Hex
#1200A9 is the 20% darker color. If the color is saturated by 10%, you get
#4201E8. If the color is desaturated by 10%, the color
#4813D0 is obtained.