The hex color #27838c is a dark color. The web-safe version is Hex
#339999. A complementary color is
#D87C73. The grayscale version is
#676767. A 20% lighter version of the original color is
#5AB6BF, and Hex
#005059 is the 20% darker color. If the color is saturated by 10%, you get
#218690. If the color is desaturated by 10%, the color
#2D8088 is obtained.