The hex color #34959c is a dark color. The web-safe version is Hex
#339999. A complementary color is
#CB6A63. The grayscale version is
#777777. A 20% lighter version of the original color is
#67C8CF, and Hex
#016269 is the 20% darker color. If the color is saturated by 10%, you get
#2D98A0. If the color is desaturated by 10%, the color
#3B9298 is obtained.