Particles Becoming Invisible with Low Red Values

I have made a basic particle explosion that I have set up with a instance parameter that allows me to change the color. Now when I change the color to anything without at least 0.2 red, the particles become invisible and I have no idea why. Here is the material:

Figured out how to fix the problem. Just had to set radial gradient to multiple the alpha and setting the color to the emissive color.