Substract as much colors as you want. Just type your colors separated by the symbol "-" in the search field. ColorHexa will then compute the result automatically and return the color corresponding to your query.
Subtract colors together
Separate the colors by "-".
#ff0000 - #0000ff
Combine with any color format
Use correct color values.
dark red - hsl 200,100,30 - r 20, g 30, b 10