The hex color #6c65db is a dark color. The web-safe version is Hex
#6666CC. A complementary color is
#939A24. The grayscale version is
#8F8F8F. A 20% lighter version of the original color is
#9F98FF, and Hex
#3932A8 is the 20% darker color. If the color is saturated by 10%, you get
#6961E3. If the color is desaturated by 10%, the color
#6F69D3 is obtained.