The hex color #2b353d is a dark color. The web-safe version is Hex
#333333. A complementary color is
#D4CAC2. The grayscale version is
#343434. A 20% lighter version of the original color is
#5E6870, and Hex
#00020A is the 20% darker color. If the color is saturated by 10%, you get
#2A353E. If the color is desaturated by 10%, the color
#2C353C is obtained.