The hex color #2a718c is a dark color. The web-safe version is Hex
#336699. A complementary color is
#D58E73. The grayscale version is
#626262. A 20% lighter version of the original color is
#5DA4BF, and Hex
#003E59 is the 20% darker color. If the color is saturated by 10%, you get
#247290. If the color is desaturated by 10%, the color
#307088 is obtained.