The hex color #2c9ebf is a dark color. The web-safe version is Hex
#3399CC. A complementary color is
#D36140. The grayscale version is
#838383. A 20% lighter version of the original color is
#5FD1F2, and Hex
#006B8C is the 20% darker color. If the color is saturated by 10%, you get
#23A1C5. If the color is desaturated by 10%, the color
#359BB9 is obtained.