Distribution Vector Particle Parameter: Color clamps to 0,0,0 - 1,1,1

I am trying to edit a particle’s color and lerp it over a period of a second. I am using colors at are over 1,1,1 so they have emission and glow. However, when I try to change the color through the lerp node, the blueprint seems to clamp it to 1,1,1, or just plain white. I’ve attached my Cascade setup, the section of my BP where I change the color, and the Parameter options in the blueprint. I’d be happy to provide any more information. Thanks in advance!