The hex color #6e67a2 is a dark color. The web-safe version is Hex
#666699. A complementary color is
#91985D. The grayscale version is
#7D7D7D. A 20% lighter version of the original color is
#A19AD5, and Hex
#3B346F is the 20% darker color. If the color is saturated by 10%, you get
#6D65A6. If the color is desaturated by 10%, the color
#70699E is obtained.