Hex #1c99a1 or rgb(28,153,161) in RGB space is the tint of cyan. It has hue angle of 183.61 degrees, value = 63 and saturation = 83. #1c99a1 can be obtained by mixing 4 colors: 4 drops of blue, 2 drops of cyan, 2 drops of green, 1 drop of white.
Nearest safe hex - #339999. Below you can see the block with #1c99a1 color and its structure: in procentage ratio and in drops of pigments. Click "TRY" button to move #1c99a1 to the mixer and play with it.