The hex color #3a61a0 is a dark color. The web-safe version is Hex
#336699. A complementary color is
#C59E5F. The grayscale version is
#696969. A 20% lighter version of the original color is
#6D94D3, and Hex
#072E6D is the 20% darker color. If the color is saturated by 10%, you get
#3560A6. If the color is desaturated by 10%, the color
#3F629B is obtained.