The hex color #30809f is a dark color. The web-safe version is Hex
#339999. A complementary color is
#CF7F60. The grayscale version is
#707070. A 20% lighter version of the original color is
#63B3D2, and Hex
#004D6C is the 20% darker color. If the color is saturated by 10%, you get
#2A82A4. If the color is desaturated by 10%, the color
#367E9A is obtained.