The hex color #594bcc is a dark color. The web-safe version is Hex
#6633CC. A complementary color is
#A6B433. The grayscale version is
#7B7B7B. A 20% lighter version of the original color is
#8C7EFF, and Hex
#261899 is the 20% darker color. If the color is saturated by 10%, you get
#5646D4. If the color is desaturated by 10%, the color
#5C50C4 is obtained.