The hex color #344dc8 is a dark color. The web-safe version is Hex
#3366CC. A complementary color is
#CBB237. The grayscale version is
#6E6E6E. A 20% lighter version of the original color is
#6780FB, and Hex
#011A95 is the 20% darker color. If the color is saturated by 10%, you get
#2E4AD1. If the color is desaturated by 10%, the color
#3A50BF is obtained.