Hex #1a454d or rgb(26,69,77) in RGB space is the tint of bluish cian. It has hue angle of 189.41 degrees, value = 30 and saturation = 66. #1a454d can be obtained by mixing 4 colors: 1 drop of yellow, 3 drops of blue, 1 drop of cyan, 5 drops of black.
Nearest safe hex - #333366. Below you can see the block with #1a454d color and its structure: in procentage ratio and in drops of pigments. Click "TRY" button to move #1a454d to the mixer and play with it.