Hex #628383 or rgb(98,131,131) in RGB space is the tint of cyan. It has hue angle of 180.00 degrees, value = 51 and saturation = 25. #628383 can be obtained by mixing 4 colors: 2 drops of yellow, 3 drops of red, 4 drops of blue, 4 drops of cyan.
Nearest safe hex - #669999. Below you can see the block with #628383 color and its structure: in procentage ratio and in drops of pigments. Click "TRY" button to move #628383 to the mixer and play with it.