Hex #875b5b or rgb(135,91,91) in RGB space is the tint of red. It has hue angle of 0.00 degrees, value = 53 and saturation = 33. #875b5b can be obtained by mixing 4 colors: 5 drops of yellow, 4 drops of magenta, 5 drops of blue, 3 drops of black.
Nearest safe hex - #996666. Below you can see the block with #875b5b color and its structure: in procentage ratio and in drops of pigments. Click "TRY" button to move #875b5b to the mixer and play with it.