Riddle Me This

I am a colour in which my personality is like a sponge, absorbing everything surrounding me.

I am dark but full. Full that is not in substance but instead mystery.

Like the night sky that keeps our head held high when wondering, pondering on answers we’ll never know in this time, I feel like I am more than a colour.

I can be felt as fear, seen as the end of light, known as peace, a place to sleep.

I am the outline to the artistic eye and majority will appreciate me for my boldness.

When storms rule the skies I come as doom.

When clouds cover the sun I full the room and all hope will perish because of me.

See I am unique and come as many things. Like a mirror that reflects I am inspired by myself ,though I can not see myself, for I am still a mystery

So riddle me this.

Which colour am I?