Blue wall art may just have originated from Pablo Picasso's famous Blue Period where he created monochromatic paintings all in shades of blue and blue-green. Other famous examples of artworks with a blue focus include Vincent van Gogh's 'The Starry Night' and 'Vase of Irises Against a Yellow Background' as well as Henri Matisse's 'Nu Bleu IV' and a legion of other artists' work. Blue is the color of the sky and sea. Interior decorators use blue to lend a cool, expansive feel to any setting. From pale to dark and crisp to soft, blue holds its own no matter the shade or tone. It works well with classic and contemporary decor and may be found in any artwork from poster prints to canvas art.