WorldCoordinate3Way with tint

Hi! For my project I found very useful the WorldCoordinate3Way node that assigns 3 different textures to the three planes of an object. But I would also like to make multiple material instances with different shades of color for different planes. I understand that I can output separate textures for XY,XZ and YZ planes from the WorldCoordinate3Way node and multiply each of them by a different shade of color, but how do I then reassemble back these three tinted textures into one texture to assign it to the Base Color?