Why do textures colored above normal appear normal when inside a character?

I’m making a dress up game and i wanted to add some special glowing colors for textures and decals, however even if the color3 is set to (2550,2550,2550) the texture looks normal and non glowing, i noticed that if i parent it outside the player it’ll glow again but i need it to be inside the player.
this is the skirt inside the player:


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this is how i want it to look:

is there anything i can do?