The hex color #6458cc is a dark color. The web-safe version is Hex
#6666CC. A complementary color is
#9BA733. The grayscale version is
#838383. A 20% lighter version of the original color is
#978BFF, and Hex
#312599 is the 20% darker color. If the color is saturated by 10%, you get
#6154D3. If the color is desaturated by 10%, the color
#675CC5 is obtained.