The hex color #4b737c is a dark color. The web-safe version is Hex
#336666. A complementary color is
#B48C83. The grayscale version is
#696969. A 20% lighter version of the original color is
#7EA6AF, and Hex
#184049 is the 20% darker color. If the color is saturated by 10%, you get
#48747E. If the color is desaturated by 10%, the color
#4E727A is obtained.