I’m trying to figure out how to perfectly blend color layers in photoshop. I want to blend the layers while maintaining the original saturation. The closest I’ve been able to get is by altering the opacity (shown below). When I do this, however, the image (magenta layer @ 50%) loses its saturation and looks faded compared with the 100% opacity yellow layer. This makes the red section where they blend look similarly faded. Is there a way to blend (100%) without sacrificing the saturation of the original image?
Answer
Set the blend mode of the magenta layer from ‘Normal’ to ‘Multiply’ and its opacity back to 100%. This will cause the colour values of both layers to be added together, resulting in a bright red. You can find blend modes in the Layers palette, right next to the Opacity.
Do note that blend modes work differently depending on your document’s colour mode (Image > Mode...). You will achieve the desired result in RGB mode, but CMYK may differ greatly.
Attribution
Source : Link , Question Author : Ian , Answer Author : Vincent