Hex #158fc0 or rgb(21,143,192) in RGB space is the tint of bluish cian. It has hue angle of 197.19 degrees, value = 75 and saturation = 89. #158fc0 can be obtained by mixing 4 colors: 1 drop of magenta, 5 drops of blue, 5 drops of cyan, 1 drop of green.
Nearest safe hex - #0099cc. Below you can see the block with #158fc0 color and its structure: in procentage ratio and in drops of pigments. Click "TRY" button to move #158fc0 to the mixer and play with it.