It completely depends on things like your skin tone, not everyone with dark hair and pale skin will suit the same things. A few questions:
- do you better suit pure white or cream? (One or the other will wash you out more)
- do you suit gold jewellery or silver jewellery better?
- do you have any pale blue clothes in your wardrobe? If yes, do you feel good when you wear them?
If the answer to 1 and 2 is cream and gold, then I would say you probably won't suit it. If white and silver, then you most likely will. And if you have a pale blue something else and you feel good in it, then it's likely because it naturally suits you, so this probably will too. If it's something you pass over for other items/colours or you never feel completely comfortable in it, it may because it doesn't completely suit your colouring.
Most people subconsciously are aware of what suits them or not once things are actually physically on them, hence why you change your mind in the dressing room of a shop after having picked it up on the hanger.
Hope this helps!