Complementary colors (English Wikipedia)

"Negative Afterimages". Illusions Index. Centre for the Study of Perceptual Experience, University of Glasgow. Archived from the original on February 12, 2024. Retrieved December 15, 2025. Thus a red stimulus will produce a green afterimage (and vice versa), a blue stimulus will produce a yellow afterimage (and vice versa).

nih.gov (Global: 5^th place; English: 5^th place)

Bujack, Roxana; Teti, Emily; Miller, Jonah; Caffrey, Elektra; Turton, Terece L. (May 3, 2022). "The non-Riemannian nature of perceptual color space". Proceedings of the National Academy of Sciences. 119 (18) e2119753119. Bibcode:2022PNAS..11919753B. doi:10.1073/pnas.2119753119. ISSN 0027-8424. PMC 9170152. PMID 35486695.

Bujack, Roxana; Teti, Emily; Miller, Jonah; Caffrey, Elektra; Turton, Terece L. (May 3, 2022). "The non-Riemannian nature of perceptual color space". Proceedings of the National Academy of Sciences. 119 (18) e2119753119. Bibcode:2022PNAS..11919753B. doi:10.1073/pnas.2119753119. ISSN 0027-8424. PMC 9170152. PMID 35486695.

David Briggs (2007). "The Dimensions of Color". Archived from the original on March 31, 2013. Retrieved November 23, 2011.
McLaren, K. (December 1985). "Newton's indigo". Color Research & Application. 10 (4): 225–229. doi:10.1002/col.5080100411. ISSN 0361-2317. Archived from the original on February 1, 2024. Retrieved February 1, 2024.
"Negative Afterimages". Illusions Index. Centre for the Study of Perceptual Experience, University of Glasgow. Archived from the original on February 12, 2024. Retrieved December 15, 2025. Thus a red stimulus will produce a green afterimage (and vice versa), a blue stimulus will produce a yellow afterimage (and vice versa).

McLaren, K. (December 1985). "Newton's indigo". Color Research & Application. 10 (4): 225–229. doi:10.1002/col.5080100411. ISSN 0361-2317. Archived from the original on February 1, 2024. Retrieved February 1, 2024.

McLaren, K. (December 1985). "Newton's indigo". Color Research & Application. 10 (4): 225–229. doi:10.1002/col.5080100411. ISSN 0361-2317. Archived from the original on February 1, 2024. Retrieved February 1, 2024.
Bujack, Roxana; Teti, Emily; Miller, Jonah; Caffrey, Elektra; Turton, Terece L. (May 3, 2022). "The non-Riemannian nature of perceptual color space". Proceedings of the National Academy of Sciences. 119 (18) e2119753119. Bibcode:2022PNAS..11919753B. doi:10.1073/pnas.2119753119. ISSN 0027-8424. PMC 9170152. PMID 35486695.