Midnight Wheat Malt is a great way to introduce richness in colour to low SRM beers and contribute towards the smooth darkness of higher SRM beers as well. Midnight Wheat is a low bitterness malt that can bring some subtle roasted flavours to your brew. As with any malt differing quantities can influence in different ways but Midnight Wheat probably includes the least amount of astringent flavours towards beers with high percentage of roasted malts.
Try this malt in styles like Schwarzbier or a Black IPA where the dark colour is desired but not always the intensity of roasted or chocolate flavours. Or just use it as a mild colour adjuster.