Composition of Standard White Light and Light Enriched with Blue (2 of 2) (image) INSERM (Institut national de la santé et de la recherche médicale) Share Print E-Mail Caption On the left, the spectrum of the white light consists of roughly equal parts of red and green (about 40 percent), then blue (12 percent) and infrared waves (4 percent). On the right, the proportions are different (42 percent blue and 14 percent red). Nevertheless, with the naked eye, a human will perceive a white light in both cases. Credit Inserm/ Gronfier, Claude Usage Restrictions None Share Print E-Mail Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.