Hex #247b5b or rgb(36,123,91) in RGB space is the tint of greenish cian. It has hue angle of 157.93 degrees, value = 48 and saturation = 71. #247b5b can be obtained by mixing 4 colors: 2 drops of red, 5 drops of cyan, 3 drops of green, 4 drops of black.
Nearest safe hex - #336666. Below you can see the block with #247b5b color and its structure: in procentage ratio and in drops of pigments. Click "TRY" button to move #247b5b to the mixer and play with it.