Hex #667283 or rgb(102,114,131) in RGB space is the tint of blue. It has hue angle of 215.17 degrees, value = 51 and saturation = 22. #667283 can be obtained by mixing 4 colors: 1 drop of yellow, 5 drops of red, 4 drops of blue, 5 drops of cyan.
Nearest safe hex - #666699. Below you can see the block with #667283 color and its structure: in procentage ratio and in drops of pigments. Click "TRY" button to move #667283 to the mixer and play with it.