Color #153f39 name: very dark medium greenish cian
Hex #153f39 or rgb(21,63,57) in RGB space is the tint of greenish cian. It has hue angle of 171.43 degrees, value = 25 and saturation = 67. #153f39 can be obtained by mixing 4 colors: 1 drop of magenta, 3 drops of blue, 3 drops of green, 5 drops of black.
Nearest safe hex - #003333. Below you can see the block with #153f39 color and its structure: in procentage ratio and in drops of pigments. Click "TRY" button to move #153f39 to the mixer and play with it.