The hex color #279dda is a light color. The web-safe version is Hex
#3399CC. A complementary color is
#D86225. The grayscale version is
#8A8A8A. A 20% lighter version of the original color is
#5AD0FF, and Hex
#006AA7 is the 20% darker color. If the color is saturated by 10%, you get
#1D9FE2. If the color is desaturated by 10%, the color
#319BD2 is obtained.