Heat radiation is a lot like light, but not entirely so. Black skin absorbs light. But it reflects heat just the way white skin does. If it didn't, Nigerians would all have to live in Stockholm. Ben Franklin's pane of glass made a similar point.
Light goes right through glass.
But it absorbs the heat carried in sunlight. Glass is black to heat radiation. And he went on to say what his tests suggested about dressing for cold and warm climates. Years later, an aging Franklin watched an early balloon ascent in Paris. His simple tests exposed behavior that couldn't be explained until we'd completely rewritten the laws of nature.