Parts with any material aside from Plastic and SmoothPlastic appear colorless

Heya everyone!

I’m making a basic render for a random character I made in five minutes. The issue is that the clothing he wears are white in Blender while they’re crimson in Roblox Studio.
Blender
image
Roblox Studio
image

I’m aware there is a tutorial that fixes this issue but I want it so they will always appear in color instead of being white.