The hex color #23a2bc is a dark color. The web-safe version is Hex
#3399CC. A complementary color is
#DC5D43. The grayscale version is
#808080. A 20% lighter version of the original color is
#56D5EF, and Hex
#006F89 is the 20% darker color. If the color is saturated by 10%, you get
#1AA5C2. If the color is desaturated by 10%, the color
#2C9FB6 is obtained.