Hex #125d86 or rgb(18,93,134) in RGB space is the tint of bluish cian. It has hue angle of 201.21 degrees, value = 53 and saturation = 87. #125d86 can be obtained by mixing 4 colors: 1 drop of red, 5 drops of blue, 4 drops of cyan, 4 drops of black.
Nearest safe hex - #006699. Below you can see the block with #125d86 color and its structure: in procentage ratio and in drops of pigments. Click "TRY" button to move #125d86 to the mixer and play with it.