The hex color #3d97f3 is a light color. The web-safe version is Hex
#3399FF. A complementary color is
#C2680C. The grayscale version is
#989898. A 20% lighter version of the original color is
#70CAFF, and Hex
#0A64C0 is the 20% darker color. If the color is saturated by 10%, you get
#3497FC. If the color is desaturated by 10%, the color
#4697EA is obtained.