Create a contemporary kitchen with clean lines by opting for a monochromatic gray color scheme. Use various shades of gray for the cabinets, countertops, and backsplash to achieve a sleek and modern look. Incorporate high-end appliances with a stainless steel finish to add a touch of luxury. Install recessed lighting or under-cabinet lighting to create a well-lit and inviting space. Consider adding a kitchen island with a waterfall countertop for a stylish focal point. Keep the overall design minimalistic and clutter-free to maintain the clean lines and contemporary feel.