Hex #1a5c66 or rgb(26,92,102) in RGB space is the tint of bluish cian. It has hue angle of 187.89 degrees, value = 40 and saturation = 75. #1a5c66 can be obtained by mixing 4 colors: 1 drop of yellow, 3 drops of blue, 2 drops of cyan, 4 drops of black.
Nearest safe hex - #336666. Below you can see the block with #1a5c66 color and its structure: in procentage ratio and in drops of pigments. Click "TRY" button to move #1a5c66 to the mixer and play with it.