The hex color #1a84ed is a dark color. The web-safe version is Hex
#3399FF. A complementary color is
#E57B12. The grayscale version is
#848484. A 20% lighter version of the original color is
#4DB7FF, and Hex
#0051BA is the 20% darker color. If the color is saturated by 10%, you get
#0F84F8. If the color is desaturated by 10%, the color
#2584E2 is obtained.