The sadness of Spain and the monotony of the Spanish coloring after the time spent in Paris struck him forcibly upon his return there. Because one must never forget that Spain is not like other southern countries, it is not colorful, all the colors in Spain are white black silver or gold; there is no red or green, not at all. Spain in this sense is not at all southern, it is oriental, women there wear black more often than colors, the earth is dry and gold in color, the sky is blue almost black, the star-light nights are black too or a very dark blue and the air is very light, so that every one and everything is black. All the same I like Spain. Everything that was Spanish impressed itself upon Picasso when he returned there after his second absence and the result is what is known as his blue period. The French influence which had made his first or Toulouse Lautrec one was over and he had returned to his real character, his Spanish character.
fr. Picasso (1938)