Transfer vertex color data to Decal Texture

Right now I am layering textures using material functions. I am using vertex colors to tell unreal where to place each material. I am now trying to put grass into the level and display a sports logo on the grass via a decal texture. But since my original texture is built using vertex color maps the decal doesn’t inherently have the vertex color data like the piece of geometry does. Is there a way to “call” the vertex color data from a piece of geometry to use in the decal material?