Hex #1a594d or rgb(26,89,77) in RGB space is the tint of greenish cian. It has hue angle of 168.57 degrees, value = 35 and saturation = 71. #1a594d can be obtained by mixing 4 colors: 1 drop of red, 3 drops of cyan, 1 drop of green, 5 drops of black.
Nearest safe hex - #336666. Below you can see the block with #1a594d color and its structure: in procentage ratio and in drops of pigments. Click "TRY" button to move #1a594d to the mixer and play with it.