Hex #148a8a or rgb(20,138,138) in RGB space is the tint of cyan. It has hue angle of 180.00 degrees, value = 54 and saturation = 86. #148a8a can be obtained by mixing 4 colors: 1 drop of magenta, 5 drops of blue, 3 drops of cyan, 4 drops of green.
Nearest safe hex - #009999. Below you can see the block with #148a8a color and its structure: in procentage ratio and in drops of pigments. Click "TRY" button to move #148a8a to the mixer and play with it.