Hex #1a84bc or rgb(26,132,188) in RGB space is the tint of bluish cian. It has hue angle of 200.74 degrees, value = 74 and saturation = 86. #1a84bc can be obtained by mixing 4 colors: 5 drops of blue, 3 drops of cyan, 1 drop of white, 1 drop of black.
Nearest safe hex - #3399cc. Below you can see the block with #1a84bc color and its structure: in procentage ratio and in drops of pigments. Click "TRY" button to move #1a84bc to the mixer and play with it.