The hex color #379ecc is a light color. The web-safe version is Hex
#3399CC. A complementary color is
#C86133. The grayscale version is
#8B8B8B. A 20% lighter version of the original color is
#6AD1FF, and Hex
#046B99 is the 20% darker color. If the color is saturated by 10%, you get
#2FA0D3. If the color is desaturated by 10%, the color
#3F9CC6 is obtained.