The hex color #1b267d is a dark color. The web-safe version is Hex
#333366. A complementary color is
#E4D982. The grayscale version is
#3F3F3F. A 20% lighter version of the original color is
#4E59B0, and Hex
#00004A is the 20% darker color. If the color is saturated by 10%, you get
#172383. If the color is desaturated by 10%, the color
#1F2977 is obtained.