Hex #1c5f7b or rgb(28,95,123) in RGB space is the tint of bluish cian. It has hue angle of 197.68 degrees, value = 48 and saturation = 77. #1c5f7b can be obtained by mixing 4 colors: 1 drop of red, 2 drops of blue, 3 drops of cyan, 3 drops of black.
Nearest safe hex - #336666. Below you can see the block with #1c5f7b color and its structure: in procentage ratio and in drops of pigments. Click "TRY" button to move #1c5f7b to the mixer and play with it.