The hex color #3a61d5 is a dark color. The web-safe version is Hex
#3366CC. A complementary color is
#C59E2A. The grayscale version is
#7B7B7B. A 20% lighter version of the original color is
#6D94FF, and Hex
#072EA2 is the 20% darker color. If the color is saturated by 10%, you get
#345EDE. If the color is desaturated by 10%, the color
#4064CC is obtained.