Hex #277769 or rgb(39,119,105) in RGB space is the tint of greenish cian. It has hue angle of 169.50 degrees, value = 47 and saturation = 67. #277769 can be obtained by mixing 4 colors: 2 drops of red, 5 drops of blue, 2 drops of cyan, 4 drops of green.
Nearest safe hex - #336666. Below you can see the block with #277769 color and its structure: in procentage ratio and in drops of pigments. Click "TRY" button to move #277769 to the mixer and play with it.