The hex color #2b9ab5 is a dark color. The web-safe version is Hex
#3399CC. A complementary color is
#D4654A. The grayscale version is
#7E7E7E. A 20% lighter version of the original color is
#5ECDE8, and Hex
#006782 is the 20% darker color. If the color is saturated by 10%, you get
#239DBB. If the color is desaturated by 10%, the color
#3397B0 is obtained.