Some of my students have continued to struggle with understanding color value, chroma or intensity and color temperature. Therefore, we did this exercise. We took a red, yellow and a blue (works best with a blue that is more to the turquoise hue (rather than ultramarine blue which leans more red or purple). We also used white and transparent oxide red or burnt sienna.
Here are the directions:
First row: Put a square of the tube color directly from the tube.
Second row: Keep the hue (color) the same and match the value across the row
(As many times as we have worked on value, this was the first time some students relearned that each color has its own value For example looking at their value scales, they re learned that yellow is a lighter value color than red or blue. Therefore, going lighter was a good option to solve this challenge). In my example, I lightened all the colors. You can see that adding white also cools the colors. Adding white also decreases the chroma (the intensity) of the colors.
Third Row: Keep the value of the new color the same as the value of the color from the tube but decrease its intensity. You know (from above) that adding white decreases the color intensity. However, it also lightens (and changes the value of the color it is added to). Instead, using a small amount of the compliment of the starting color corrected to the original color's value or adding a small amount of the transparent oxide red also corrected to the starting color's value, decreases the intensity but maintains the value of the challenge color.
Fourth Row: Keep the value the same as the starting color but change its color temperature. Again row two cools the starting colors, but it also lightens its value. Therefore, this example adds a small amount of a warm color to the starting color ( a small amount of yellow was added to the red, red to the yellow and the tiniest amount of yellow (to not change the hue to green) was added to the blue).
Looking at this 3 x 4 grid, you can already see the wide range of harmonious colors and see colors move forward and backward in relation to each other.