«17-11 achromatic color». International Commission on Illumination (CIE). 2014. Consultado em 8 de outubro de 2017. Arquivado do original em 4 de fevereiro de 2020. in the perceptual sense: perceived colour devoid of hue
«17-12 achromatic stimulus». International Commission on Illumination (CIE). 2014. Consultado em 8 de outubro de 2017. Arquivado do original em 3 de fevereiro de 2020
«17-1427 white, adapted». International Commission on Illumination (CIE). 2014. Consultado em 4 de abril de 2015. Arquivado do original em 17 de julho de 2018
Finlayson, G. D. and G. Schaefer (2001). "Convex and non-convex illuminant constraints for dichromatic colour constancy". IN: Proceedings of the 2001 ee.EE Computer Society Conference on Computer Vision and Pattern Recognition. CVPR 2001doi:10.1109/CVPR.2001.990528 "the perceived colour of an object is more or less independent of the illuminant; a white paper appears white both outdoors under bluish daylight and indoors under yellow tungsten light, though the responses of the eyes' colour receptors ... will be quite different for the two cases."
"Does hue affect the perception of grayness?", R Shamey, W Sawatwarakul, Sha Fu, 13 May 2014, doi:10.1002/col.21894,
Color Research & Application, Volume 40, Issue 4, p. 374. http://onlinelibrary.wiley.com/doi/10.1002/col.21894/pdfArquivado em 8 outubro 2017 no Wayback Machine "The usual definition of achromatic color is 'a perceived color without hue.' The colorimetric definition is that of an object with a flat reflectance function at a given level of reflectance, or one of its metamers."
"Does hue affect the perception of grayness?", R Shamey, W Sawatwarakul, Sha Fu, 13 May 2014, doi:10.1002/col.21894,
Color Research & Application, Volume 40, Issue 4, p. 374. http://onlinelibrary.wiley.com/doi/10.1002/col.21894/pdfArquivado em 8 outubro 2017 no Wayback Machine "The usual definition of achromatic color is 'a perceived color without hue.' The colorimetric definition is that of an object with a flat reflectance function at a given level of reflectance, or one of its metamers."
«17-11 achromatic color». International Commission on Illumination (CIE). 2014. Consultado em 8 de outubro de 2017. Arquivado do original em 4 de fevereiro de 2020. in the perceptual sense: perceived colour devoid of hue
«17-12 achromatic stimulus». International Commission on Illumination (CIE). 2014. Consultado em 8 de outubro de 2017. Arquivado do original em 3 de fevereiro de 2020
«17-1427 white, adapted». International Commission on Illumination (CIE). 2014. Consultado em 4 de abril de 2015. Arquivado do original em 17 de julho de 2018
"Does hue affect the perception of grayness?", R Shamey, W Sawatwarakul, Sha Fu, 13 May 2014, doi:10.1002/col.21894,
Color Research & Application, Volume 40, Issue 4, p. 374. http://onlinelibrary.wiley.com/doi/10.1002/col.21894/pdfArquivado em 8 outubro 2017 no Wayback Machine "The usual definition of achromatic color is 'a perceived color without hue.' The colorimetric definition is that of an object with a flat reflectance function at a given level of reflectance, or one of its metamers."