The hex color #2d19b5 is a dark color. The web-safe version is Hex
#3300CC. A complementary color is
#D2E64A. The grayscale version is
#545454. A 20% lighter version of the original color is
#604CE8, and Hex
#000082 is the 20% darker color. If the color is saturated by 10%, you get
#2913BF. If the color is desaturated by 10%, the color
#311FAB is obtained.