The hex color #2a3ee9 is a dark color. The web-safe version is Hex
#3333FF. A complementary color is
#D5C116. The grayscale version is
#707070. A 20% lighter version of the original color is
#5D71FF, and Hex
#000BB6 is the 20% darker color. If the color is saturated by 10%, you get
#2339F5. If the color is desaturated by 10%, the color
#3143DD is obtained.