The hex color #3e67d4 is a dark color. The web-safe version is Hex
#3366CC. A complementary color is
#C1982B. The grayscale version is
#7E7E7E. A 20% lighter version of the original color is
#719AFF, and Hex
#0B34A1 is the 20% darker color. If the color is saturated by 10%, you get
#3865DD. If the color is desaturated by 10%, the color
#4469CB is obtained.