The hex color #6a6b9e is a dark color. The web-safe version is Hex
#666699. A complementary color is
#959461. The grayscale version is
#7C7C7C. A 20% lighter version of the original color is
#9D9ED1, and Hex
#37386B is the 20% darker color. If the color is saturated by 10%, you get
#6869A1. If the color is desaturated by 10%, the color
#6C6D9B is obtained.