The hex color #3b8fa2 is a dark color. The web-safe version is Hex
#339999. A complementary color is
#C4705D. The grayscale version is
#797979. A 20% lighter version of the original color is
#6EC2D5, and Hex
#085C6F is the 20% darker color. If the color is saturated by 10%, you get
#3591A6. If the color is desaturated by 10%, the color
#418D9E is obtained.