Characters from SSSS.Gridman HD Wallpaper

Four anime characters stand against solid color backgrounds. From left to right, a girl with purple hair wears a purple jacket over a white shirt and skirt. A boy with red hair wears a grey vest over a white shirt and black pants. A girl with dark hair wears a white jacket over a blue skirt. A boy with green hair wears a white open shirt over a green shirt and black pants.