The hex color #2a595c is a dark color. The web-safe version is Hex
#336666. A complementary color is
#D5A6A3. The grayscale version is
#4A4A4A. A 20% lighter version of the original color is
#5D8C8F, and Hex
#002629 is the 20% darker color. If the color is saturated by 10%, you get
#275A5E. If the color is desaturated by 10%, the color
#2D585A is obtained.