The INFRA-ART Spectral Database is an open access collection of high quality ATR-FTIR and XRF reference spectra of artists' and cultural heritage materials. The database is licensed under the Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0) license, and is meant as a free resource for researchers and other specialists in the field of heritage science, art history, conservation and materials science.

The database is an ongoing compilation of spectra that contains at this moment over 1000 ATR-FTIR and XRF spectra associated to over 500 known reference materials. To facilitate the search of the end user, the samples have been grouped in several classes, as follow: mineral pigments; earth pigments; inorganic pigments, synthetic; natural organic dyes and pigments; organic pigments, synthetic; mixed pigments; resins, balsams and wax; artist color paints; synthetic dyes; unclassified materials; other mixtures; metal powder; carbon-based pigments; glues, gums and binders.