The hex color #6a57cc is a dark color. The web-safe version is Hex
#6666CC. A complementary color is
#95A833. The grayscale version is
#848484. A 20% lighter version of the original color is
#9D8AFF, and Hex
#372499 is the 20% darker color. If the color is saturated by 10%, you get
#6752D3. If the color is desaturated by 10%, the color
#6D5CC5 is obtained.