The hex color #3A61A8 is a dark color. The web-safe version is Hex
#336699. A complementary color is
#C59E57. The grayscale version is
#6C6C6C. A 20% lighter version of the original color is
#6D94DB, and Hex
#072E75 is the 20% darker color. If the color is saturated by 10%, you get
#3560AE. If the color is desaturated by 10%, the color
#3F62A2 is obtained.