shining in the dark; giving out light (Oxford)
very bright in colour (Oxford)
producing or reflecting bright light, especially in the dark (Cambridge)
She was staring with huge luminous eyes.
They painted the door a luminous green.
The library was lit by the luminous glow of laptops.
luminous eyes.
luminous green
luminous glow
Shining
Lucent
Dark
Dim
Luminosity