Hex #273a42 or rgb(39,58,66) in RGB space is the tint of bluish cian. It has hue angle of 197.78 degrees, value = 26 and saturation = 41. #273a42 can be obtained by mixing 4 colors: 2 drops of magenta, 3 drops of blue, 3 drops of green, 5 drops of black.
Nearest safe hex - #333333. Below you can see the block with #273a42 color and its structure: in procentage ratio and in drops of pigments. Click "TRY" button to move #273a42 to the mixer and play with it.