The hex color #6a549c is a dark color. The web-safe version is Hex
#666699. A complementary color is
#95AB63. The grayscale version is
#737373. A 20% lighter version of the original color is
#9D87CF, and Hex
#372169 is the 20% darker color. If the color is saturated by 10%, you get
#6951A0. If the color is desaturated by 10%, the color
#6B5798 is obtained.