What if the color of the columns also depends on the distance? the closest white, then light yellow, dark yellow, shades of green, finally black.
Little game idea: you are in a maze, you have a lantern. You hear strange noises and smells and you know THINGS are in the dark, ready to devour you if the light goes out.
You have to find the exit and quickly because over time the oil of the lantern burns and the darkness approaches.
In the labyrinth you can find some oil flasks or signs with cryptic clues.
Sometimes in the dark you can see malevolent eyes looking at you.
The corridors are all the same but in some there are noises or smells that help you distinguish them.
If the light goes out you are dead.