Hex #1c5f5f or rgb(28,95,95) in RGB space is the tint of cyan. It has hue angle of 180.00 degrees, value = 37 and saturation = 71. #1c5f5f can be obtained by mixing 4 colors: 1 drop of yellow, 2 drops of blue, 2 drops of cyan, 4 drops of black.
Nearest safe hex - #336666. Below you can see the block with #1c5f5f color and its structure: in procentage ratio and in drops of pigments. Click "TRY" button to move #1c5f5f to the mixer and play with it.