Color illusion 7

Color illusion VII

Since February 6, 2007

"Pink illusion"

Nine small squares appear to be tinted pink, though the color is actually the same as the monochromatic gradation shown in the square at the left.

Longer viewing may increase the effect.

"Red illusion"

Nine small squares might appear to be tinted red, though the color is actually the same as the monochromatic gradation shown in the square at the left.

Longer viewing may increase the effect.

"Blue illusion"

Nine small squares might appear to be tinted blue, though the color is actually the same as the monochromatic gradation shown in the square at the left.

Longer viewing may increase the effect.

"Light-green illusion"

Nine small squares might appear to be tinted green, though the color is actually the same as the monochromatic gradation shown in the square at the left.

Longer viewing may increase the effect.

"Gold illusion"

Nine small squares might appear to be tinted gold, though the color is actually the same as the monochromatic gradation shown in the square at the left.

Longer viewing may increase the effect.

"Light-blue illusion"

Nine small squares might appear to be tinted light-blue, though the color is actually the same as the monochromatic gradation shown in the square at the left.

Longer viewing may increase the effect.

"Pink illusion 2"

Nine small squares appear to be tinted pink, though the color is actually the same as the monochromatic gradation shown in the square at the left.

"Red illusion 2"

Nine small squares appear to be tinted red, though the color is actually the same as the monochromatic gradation shown in the square at the left.

Longer viewing may increase the effect.

"Cyan illusion"

Nine small squares appear to be tinted cyan, though the color is actually the same as the monochromatic gradation shown in the square at the left.

Longer viewing may increase the effect.

"Dark-green illusion"

Nine small squares appear to be tinted dark-green, though the color is actually the same as the monochromatic gradation shown in the square at the left.

Longer viewing may increase the effect.

"Color contrast: Miscellaneous 2007 YR"

(a)-(g) The central square in the left half appears to be more reddish or less yellowish than that in the right one, though they are identical in color. (a)-(d) are the new demonstrations. (e) is the standard type. (f) is known (I guess). (g) is the enhanced color contrast I presented before. (h) is chromatic White's effect, where the central square in the left half might appear to be more yellowish or less reddish than that in the right one.

For Jeff

"Color contrast: Miscellaneous 2007 GB"

(a)-(g) The central square in the left half appears to be more bluish or less greenish than that in the right one, though they are identical in color. (a)-(d) are the new demonstrations. (e) is the standard type. (f) is known (I guess). (g) is the enhanced color contrast I presented before. (h) is chromatic White's effect, where the central square in the left half might appear to be more greenish or less bluish than that in the right one.

For Jeff

"Color contrast: Miscellaneous 2007 YB"

(a)-(g) The central gray square in the left half appears to be more bluish or less yellowish than that in the right one, though they are identical in color. (a)-(d) are the new demonstrations. (e) is the standard type. (f) is known (I guess). (g) is the enhanced color contrast I presented before. (h) is chromatic White's effect, where the central gray square in the left half might appear to be more yellowish or less bluish than that in the right one.

For Jeff