The hex color #5778ed is a dark color. The web-safe version is Hex
#6666FF. A complementary color is
#A88712. The grayscale version is
#949494. A 20% lighter version of the original color is
#8AABFF, and Hex
#2445BA is the 20% darker color. If the color is saturated by 10%, you get
#5175F6. If the color is desaturated by 10%, the color
#5D7BE4 is obtained.