The colors of your hair are an important part of your identity.
If you wear a pink or red hair dye, you’re more likely to get noticed by the opposite sex.
If, on the other hand, you choose a color like purple, you might be more likely get recognized by your friends and family.
But what makes your hair color uniquely yours?
How do you pick the right one?
The first thing you should do is ask yourself what your hair looks like in the sun, as opposed to in the shade.
This is where color theory comes into play.
To determine your hair’s color, scientists have looked at the spectral makeup of sunlight.
You can tell a lot about a hair’s overall appearance by the light reflected off of the hair, says Robert J. Johnson, a professor of dermatology and clinical assistant professor at the University of Michigan School of Medicine.
The sun can’t penetrate all the way through the hair.
For instance, if your hair is dyed with a very fine yellowish dye, the sunlight would still bounce off the hair fibers, making it appear a yellowish color.
This means that there is a small amount of light reflected from the hair at all times.
But that amount of reflected light is far too small to cause any visible change in the color of the fibers.
To find out what your sun looks like, Johnson and his colleagues looked at how the sun reflected off the surface of the sunflower.
When a light source is pointed at a specific area of a flower, the light bounces off of its surface.
When the same light source comes at another location, the reflected light bounces back, making the light appear a different color.
Johnson and colleagues tested the effect of different sunflowers on the hair color.
They then compared the results to how their sunflower-colored hair looked when they were exposed to different wavelengths of sunlight from the same angle.
They found that the sun’s rays bounced off the color differently from that of a yellow light.
This is a great way to get an idea of how the color will change in different light sources, says Johnson.
But it’s not the only way to test how your hair will look under different lighting conditions.
The researchers also tested the effects of various colors on hair strands.
The results showed that, depending on the color, the fibers in your hair would absorb light differently.
If your hair strands were dark purple, the wavelength of the sunlight reflected from your hair was much shorter than the wavelength reflected from a yellow-tinted hair dye.
If the color was light pink, the color reflected from hair would be much longer than the color from a purple-tattooed hair color, Johnson says.
What’s the difference between a yellow hair and a purple hair?
The color of your scalp hair can also make a big difference, Johnson explains.
If it’s a medium-pink color, hair follicles have to absorb a lot of light, which means your scalp’s pigment will be lighter.
When you wear the dye, your hair follicle is more sensitive to the sun and is less likely to absorb as much light as your scalp.
If you don’t want to dye your hair, Johnson suggests you pick a color that’s a little lighter in the center.
“That gives you a little bit more range of shade and it’s easy to blend,” he says.
Another important factor is how the dye is applied.
“The more intense the color is, the more absorption you’re getting,” says Johnson, adding that your scalp will absorb more light than a medium color.
“So you’ll probably want to apply it to the hair follicular area where the hair is.”
How do you find the right color for your hair?
If you want a bold, bolder color, use a light yellow hair dye and apply it in a circular motion.
If that looks too bold, add some shade to the color and start with a darker color, like a dark brown.