Hex #277e76 or rgb(39,126,118) in RGB space is the tint of cyan. It has hue angle of 174.48 degrees, value = 49 and saturation = 69. #277e76 can be obtained by mixing 4 colors: 2 drops of yellow, 3 drops of blue, 4 drops of cyan, 4 drops of black.
Nearest safe hex - #336666. Below you can see the block with #277e76 color and its structure: in procentage ratio and in drops of pigments. Click "TRY" button to move #277e76 to the mixer and play with it.