http://www.xrite.com/custom_page.aspx?PageID=77
Pretty simple. Drag and drop the squares in order to arrange them by color. The first and last ones are fixed, so you have a point of reference.
Very surprisingly I got a 0 (perfect score) on my first try:
Pretty simple. Drag and drop the squares in order to arrange them by color. The first and last ones are fixed, so you have a point of reference.
Very surprisingly I got a 0 (perfect score) on my first try: