Hex #5d9fa3 or rgb(93,159,163) in RGB space is the tint of cyan. It has hue angle of 183.43 degrees, value = 64 and saturation = 43. #5d9fa3 can be obtained by mixing 4 colors: 3 drops of magenta, 4 drops of cyan, 3 drops of green, 1 drop of white.
Nearest safe hex - #669999. Below you can see the block with #5d9fa3 color and its structure: in procentage ratio and in drops of pigments. Click "TRY" button to move #5d9fa3 to the mixer and play with it.