Hex #bfcf40 or rgb(191,207,64) in RGB space is the tint of yellow. It has hue angle of 66.71 degrees, value = 81 and saturation = 69. #bfcf40 can be obtained by mixing 3 colors: 5 drops of yellow, 1 drop of red, 2 drops of cyan.
Nearest safe hex - #cccc33. Below you can see the block with #bfcf40 color and its structure: in procentage ratio and in drops of pigments. Click "TRY" button to move #bfcf40 to the mixer and play with it.