Hex #4d8d91 or rgb(77,141,145) in RGB space is the tint of cyan. It has hue angle of 183.53 degrees, value = 57 and saturation = 47. #4d8d91 can be obtained by mixing 4 colors: 4 drops of blue, 2 drops of green, 3 drops of white, 1 drop of black.
Nearest safe hex - #669999. Below you can see the block with #4d8d91 color and its structure: in procentage ratio and in drops of pigments. Click "TRY" button to move #4d8d91 to the mixer and play with it.