Books on colors in web design/web development? From simple thin to advanced thick feel?

All of my colors look pale compared to modern websites, even older websites? Which color combinations are used to create that blockbuster feeling, like it's all a thick window? My sites look thin compared to modern/once modern sites? In source code it says that it's white for background yet it looks so bright and thick? Is it some combination of letters and background that gives the illusion of other colors?