The hex color #2d70a9 is a dark color. The web-safe version is Hex
#336699. A complementary color is
#D28F56. The grayscale version is
#6D6D6D. A 20% lighter version of the original color is
#60A3DC, and Hex
#003D76 is the 20% darker color. If the color is saturated by 10%, you get
#2770AF. If the color is desaturated by 10%, the color
#3370A3 is obtained.