This song is about Matty Healy (lead singer of The 1975)
Your little brother never tells you but he loves you so (Matty has a little brother named Louis who's 14)
You said your mother only smiled on her TV show (Matty's mom has a TV show and she struggles with depression)
You're only happy when your sorry head is filled with dope (Matty does drugs)
I hope you make it 'til the day you're 28 years old (in reference to the 27 club and Matty also turned 26 in April so the age fits)
You're dripping like a saturated sunrise, you're spilling like an overflowing sink, you're ripped at every edge but you're a masterpiece and I'm tearing through the pages and the ink (even though he does drugs and is damaged she still loves him and thinks he's beautiful inside and out)
Everything is blue, his pills, his hands his jeans, and now I'm covered in the colors pulled apart at the seems, and it's blue and it's blue (he rubs off on her so much, he affects and imprints her)
Everything is grey, his hair, his smoke his dreams, and now he's so devoid of color he don't know what it means (him burning out like losing everything, not even knowing what color is ((metaphorically)) and Matty smokes)
You were a vision in the morning when the light came through, you know I've only felt religion when I'm laying with you, you said you'll never be forgiven 'til your boys are too, and I'm still waking every morning but it's not with you (he left, or she left; they broke up)
(pre chorus and chorus)
Everything is blue everything is blue everything is blue everything is blue (they've affected each other so much)
You were red, and you liked me because I was blue (they were different and new to each other)
You touched me and suddenly I was a lilac sky and you decided purple just wasn't for you (in her opinion at least he made her better/happier, then he left)
(chorus and post chorus)
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credit to saturatedsunshine on tumblr :-) i got this from her