design a modern minimalist house with a pastel color scheme the house should have soft pastel hues for its exterior walls such as light pink mint green baby blue or lavender use pastel yellow or light peach for accent features like window trims and doors the roof should be a soft muted pastel color that complements the main house exterior surround the house with a lush green lawn and add simple elegant landscaping around it the overall mood should be serene and cheerful reflecting the delicate pastel palette