Is black a colour? Black isn’t in the rainbow, but where does it fit in the colour spectrum? What makes something appear ...

Sunlight is not just light. It’s a spectrum. If you’ve ever seen a rainbow or passed sunlight through a prism, you’ve seen ...

Earlier, and perhaps more basic, LED masks usually provide just one primary colour treatment mode, such as red or blue, ...

It’s the shorter wavelengths, like blue and violet, that are more likely to be scattered or absorbed and then re-emitted in different directions by the air and gas molecules in the atmosphere.

Bup bup bup — no, violet is actually a completely different color, scientifically speaking. Like all other colors in the spectrum (and hence in the rainbow), it has its own wavelength and ...

Violet, for example, exists on the far end of the visible spectrum and has its own wavelength. Surely, that means purple should be in there somewhere, right? Well, no.

“Purple is a color mixture, whereas violet is a spectral color, meaning it consists of a single wavelength of light.” ...

Science says this popular color doesn't actually exist. In fact, it's just your brain playing tricks on you. See if YOUR ...

The shortest wavelength detection made by your S cones (violet light) has no overlap with the longest wavelength detection made by your L cones (red light).

Sunlight consists of a spectrum of colors, each with a different wavelength. Violet has the shortest wavelength and bends the most, while red has the longest wavelength and bends the least.

Because UV light with wavelengths less than 360 nm does not penetrate the eye’s cornea, this suggests that our eyes sense and adapt to the deep violet visible wavelengths in natural light.