The hex color #357D80 is a dark color. The web-safe version is Hex
#336699. A complementary color is
#CA827F. The grayscale version is
#666666. A 20% lighter version of the original color is
#68B0B3, and Hex
#024A4D is the 20% darker color. If the color is saturated by 10%, you get
#307F83. If the color is desaturated by 10%, the color
#3A7B7D is obtained.