In a RGB color space, hex #278c8a is composed of 15.3% red, 54.9% green and 54.1% blue. Whereas in a CMYK color space, it is composed of 72.1% cyan, 0% magenta, 1.4% yellow and 45.1% black. It has a hue angle of 178.8 degrees, a saturation of 56.4% and a lightness of 35.1%. #278c8a color hex could be obtained by blending #4effff with #001915. Closest websafe color is: #339999.