Bezold–Brücke shift

As intensity increases, the apparent hue of stimuli of a constant spectral distribution shifts towards blue, if its dominant wavelength is below around 500 nm; or yellow, if its dominant wavelength is above 500 nm.

As intensity is decreased, apparent hue shifts towards red or green.

[2] The effect was noted in 1866 by physiologist Ernst Wilhelm von Brücke, and experimental investigations by physicist and meteorologist Wilhelm von Bezold were published in 1873.

[5][6] A similar hue shift, the Abney effect, occurs when a visual stimulus is mixed with white light.

[7] The shift in the hue is also accompanied by the changes in the perceived saturation.

As intensity increases, colors with a dominant wavelength below ~500 nm (greenish cyans, cyans , and violets ) shift towards blue, colors with a dominant wavelength above ~500 nm (reds, oranges , and greens) shift towards yellow.
The colors on the left have the same chromaticity as their respective color on the right, with the only difference being the brightness. In cyan and violet, it can be seen that increasing the brightness shifts the hue towards blue; in orange, it shifts towards yellow.