Hex #4db23c or rgb(77,178,60) in RGB space is the tint of grass green. It has hue angle of 111.36 degrees, value = 70 and saturation = 66. #4db23c can be obtained by mixing 4 colors: 2 drops of yellow, 2 drops of blue, 5 drops of green, 1 drop of white.
Nearest safe hex - #669933. Below you can see the block with #4db23c color and its structure: in procentage ratio and in drops of pigments. Click "TRY" button to move #4db23c to the mixer and play with it.