The hex color #3b83a2 is a dark color. The web-safe version is Hex
#339999. A complementary color is
#C47C5D. The grayscale version is
#757575. A 20% lighter version of the original color is
#6EB6D5, and Hex
#08506F is the 20% darker color. If the color is saturated by 10%, you get
#3584A6. If the color is desaturated by 10%, the color
#41829E is obtained.