My color mixing experiments continued. A couple of days ago, I posted my observation of mixing ultramarine blue with white (tinting). I have noticed that the blue color has not only got lighter, but also has a hue shifting toward turquoise. Now I want to show this "tinting induced hue shift" occurs commonly to many tube colors. This short video shows what happen when I tinted 5 more colors. I noticed that 4 colors out of 5 have had the hue shift. Among these 4 colors, the most significant hue shift happens to transparent orange. We can see it changes from red to orange then even yellow during tinting. Of course, the color of the illumination source and the camera white balance may contribute to the hue shift, but this contribution is small. I also noticed the hue shift does not occur to all the colors. Yellow ochre in the video did not have the hue shift during tinting. I might have opened a can of worm, but we may be on something. I really appreciate the active discussion after my previous video post, and you all more than welcome to do your own analysis.
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