The hex color #00339c is a dark color. The web-safe version is Hex
#003399. A complementary color is
#FFCC63. The grayscale version is
#454545. A 20% lighter version of the original color is
#3366CF, and Hex
#000069 is the 20% darker color. If the color is saturated by 10%, you get
#0031A5. If the color is desaturated by 10%, the color
#073593 is obtained.