c/o Dorothy Perkins heels (last seen here; similar), J. Crew clutch, c/o BaubleBar earrings (similar here or here), c/o T+J Designs cuff (similar), Vintage ring (similar), Target sunglasses (similar here or here),
Nails: Essie Bikini So Teeny
2) Pair with a darker tone in the same color family (navy with powder blue, marsala with soft pink or dark plum with lavender)
3) Contrast against another muted shade (blush is a safe bet because it works like a neutral when worn with other pastels)