Additive Color Mixing

A demonstration of additive color mixing, such as the light from a computer monitor.

Moveable Circles
Photo

Afterimage

The opponent reverse image remains after staring at a saturated picture.

Flashing Version 2
Flashing
Outlines
Photos

Benham's Disk

Streaks of color elicited from a rotating black and white disk.

Alternate Pattern -- Vector
Alternate Pattern
Bitmap v. Vector
Black Background
Flickering
Linear
Linear, Inverted
Simple
Sizeable
Sizeable, Thicker Version

Bidwell's Ghost

An afterimage caused by a flickering picture.

Color Mixing Wheel

A different example of color mixing that defies additive or subtractive properties.

Color Space

A multi-purpose color mixing applet.

HSB

Fading Dot

Stare at this dot and it merges with the surround.

Ishihara Color Blindness

These figures are used clinically to test for color blindness.

Isoluminance

Calibrates these applets so that red, green, and blue are isoluminant on your monitor.

Ambiguous Figures
Blue to Green
Checkerboard - Red/Green
Einstein
Einstein Stamp
Gradient
Red to Blue
Red to Green

Land Effect

Example of simultaneous contrast similar to the Land Effect.

Masked

MacKay Star

Odd waves of color from a black and white star.

Afterimage
Colored
Contrast

Maxwell's Spot

A look at your own macula (seeing the macula retinae).

McCollough Effect

A very interesting and persistent form of an after effect.

Blue and Yellow
Moving Colors
Without Sound

Neon Color Spreading

The color of an illusory figure leads to a glow of color.

Dynamic Circles
Dynamic Transparent Circles
Grid
Lines
Pinna's Spreading

Reflective Color Mixing

A way to mix additive colors on your screen.

Spatial Color Mixing

A direct representation of additive color mixing on your computer screen.

Spectral Line

A single line of color to view with a prism or diffraction grating.

Spectral Mixing

A color mixing applet to configure the screen as a light source for diffraction and refraction.

Subtractive Color Mixing

A simulation of subtractive color mixing, such as exhibited in paint.

Moveable Circles
Photo

von Bezold Effect

A colorful demonstration of subjective brightness.

Scalable

...color

© Trustees of Boston University 2002 - 2005

Project LITE supported by NSF Grant # DUE-0125992