Hex #768e90 or rgb(118,142,144) in RGB space is the tint of cyan. It has hue angle of 184.62 degrees, value = 56 and saturation = 18. #768e90 can be obtained by mixing 4 colors: 2 drops of yellow, 5 drops of blue, 4 drops of white, 2 drops of black.
Nearest safe hex - #669999. Below you can see the block with #768e90 color and its structure: in procentage ratio and in drops of pigments. Click "TRY" button to move #768e90 to the mixer and play with it.