Von Luschan's chromatic scale
Von Luschan's chromatic scale is a way to measure skin color. You know how people come in different colors, right? Some people have really dark skin, and some people have really light skin. Well, von Luschan's chromatic scale gives us 36 different numbers to describe all of the different skin colors we see.
How does it work? We start with something called a "color scale." It's kind of like a ruler, but instead of measuring inches or centimeters, it measures colors! The color scale has 36 rectangles on it, and each rectangle is a different color.
When we want to measure someone's skin color, we take a little device called a "color comparator." The color comparator has two little windows: one that shines a light on someone's skin, and one that we can look through to compare the color of their skin to the colors on the color scale.
So let's say we want to measure someone's skin color. We shine the light on their skin with one window of the color comparator, and then we look through the other window to compare their skin color to the colors on the color scale. We find the rectangle on the color scale that matches their skin color best, and then we read the number associated with that rectangle. That number tells us what color their skin is on von Luschan's chromatic scale!
How does it work? We start with something called a "color scale." It's kind of like a ruler, but instead of measuring inches or centimeters, it measures colors! The color scale has 36 rectangles on it, and each rectangle is a different color.
When we want to measure someone's skin color, we take a little device called a "color comparator." The color comparator has two little windows: one that shines a light on someone's skin, and one that we can look through to compare the color of their skin to the colors on the color scale.
So let's say we want to measure someone's skin color. We shine the light on their skin with one window of the color comparator, and then we look through the other window to compare their skin color to the colors on the color scale. We find the rectangle on the color scale that matches their skin color best, and then we read the number associated with that rectangle. That number tells us what color their skin is on von Luschan's chromatic scale!