Table 1.

Colors used in the study and their luminances (cd/m${}^2$), Michelson contrasts, and XYZ values in CIE 1931 color space.

Color	Black	Blue	Red	Green	Light Red
Luminance	0.12	25.8	34.6	96.8	51.5
Michelson contrast	0.99	0.65	0.55	0.11	0.40
CIE XYZ	[0.95, 1, 1.08]	[0.77, 0.92, 0.13]	[0.53, 0.78, 1.06]	[0.59, 0.28, 0.96]	[0.15, 0.22, 0.30]
Color	White	grayB	grayR	grayG
Luminance	120.1	25.5	34.2	96.5
Michelson contrast	0	0.65	0.55	0.11
CIE XYZ	[0, 0, 0]	[0.72, 0.76, 0.83]	[0.17, 0.18, 0.20]	[0.06, 0.06, 0.07]