Actually, a little bit of description would be helpful. For example, are you talking about decorating your home or dressing yourself?
Grey and pink make a lovely room combination that was overused during the early-1980s. Back then, grey and pink were the go-to colors for interior design. Today, the motif looks dated and stale, from another time and generation.
But, if you’re picturing a grey business suit with a pink shirt, that look would be fabulous.