I'm making a modern house in my Minecraft world and I'm making led lights using colored glass and using torches to light them, but it's hard to cover up the torches on the inside of the house. Is it possible to make the glass glow its color with command blocks, cheats, etc. Thanks.
No, it's impossible.
But, if your lights are on the floor, you could always cover them up with Carpet.
A technical thing you can do (but this is for Java Edition) is to manually edit the light data around the places you want to be lit. However, the moment something updates light (like breaking a block), that will be lost.