Matching a few pieces for example: blazer, shoes and bag , adding a couple of colorful accessories like earrings, a ring with some neutrals, jeans and leopard print top works perfectly. It all blends in using the right tones. But keep in mind, there's no rules in fashion, go with your instincts. And if you are not sure about wearing too much color at once and you're afraid you might look like a rainbow, try one bright piece at a time and gradually incorporate more every time until you are satisfied with your outfit! And from there on you can built your confidence to a brighter wardrobe.
Have fun that's what counts, don't take yourself too seriously!
here Jeans: American Eagle similar here , Silk leopard print top: UO old, love this one Red Ankle strap sandals: Zara: sold out, similar here
Bag: Kate Spade,