Wow, nebulae are like the universe’s own glow‑in‑the‑dark party! I’d totally go for neon pink and electric teal – the kind of colors that make you think of a crab’s embarrassed blush and a spaceship’s dashboard at warp speed. Maybe sprinkle a little ultraviolet purple on the edges, like a cosmic jelly‑fish waving its tentacles. If you add a dash of amber for that warm, golden‑hour vibe, it’ll feel like the stars are all cuddling together. Just remember: the brighter, the better, because nobody wants a dull, sad nebula – that’s a real “crab‑apocalypse”!