Reyes-Valerio identified the artistic contribution of Native Mexican Indians in the Colonial painting and sculpture; he coined the term
Maya Blue
Pigment
where he re-discovered the technique used by the Maya to create the famous turquoise blue pigment. He was granted a
Instituto Nacional de Antropología e Historia
.
In April 2009, a special edition of the INAH bulletin (Boletin de Monumentos Historicos Num 12 enero-abril 2008) was published as an in memoriam edition dedicated to Constantino Reyes-Valerio. Several important researchers,
, Beatriz Barba Ahuatzin, Dora Sierra, Guillermo Tovar y de Teresa, Manuel Sanchez del Rio, Rosa Camelo among others contributed with articles to this bulletin.
He was a very active photographer and took the photographs for several books and to the general archive of the INAH. In 2009, his contribution was recognised by naming the Photographic Archive of the "Coordinacion Nacional de Monumentos Culturales" of INAH with his name.