The hex color #0a2dba is a dark color. The web-safe version is Hex
#0033CC. A complementary color is
#F5D245. The grayscale version is
#505050. A 20% lighter version of the original color is
#3D60ED, and Hex
#000087 is the 20% darker color. If the color is saturated by 10%, you get
#0329C5. If the color is desaturated by 10%, the color
#1131AF is obtained.