There is no simple formula for #97373f, but we have one for color #92343d, that is similar to #97373f by 99.3%.
Color #92343d name: dark medium red
Hex #92343d or rgb(146,52,61) in RGB space is the tint of red. It has hue angle of 354.26 degrees, value = 57 and saturation = 64. #92343d can be obtained by mixing 4 colors: 3 drops of red, 5 drops of magenta, 4 drops of green, 2 drops of black.
Nearest safe hex - #993333. Below you can see the block with #92343d color and its structure: in procentage ratio and in drops of pigments. Click "TRY" button to move #92343d to the mixer and play with it.