When it comes to visible light, violet has the highest frequency and therefore the most energy. The least energy is found in the lowest frequency of visible light, which is red.
Violet waves have the highest frequencies. Red waves have the longest wavelengths.
The red color light has the lowest frequency and the longest wavelength of the visible colors of light.
Blue light has shorter waves, with wavelengths between about 450 and 495 nanometers. Red light has longer waves, with wavelengths around 620 to 750 nm. Blue light has a higher frequency and carries more energy than red light.
Your brain interprets the various energies of visible light as different colors, ranging from red to violet. Red has the lowest energy and violet the highest.
Gamma rays, shown on the far right side, have the highest energies, the shortest wavelengths, and the highest frequencies.
When it comes to visible light, the highest frequency color, which is violet, also has the most energy. The lowest frequency of visible light, which is red, has the least energy.
Frequency is generally measured in Hertz, which are units of cycles per second. Color is the frequency of visible light, and it ranges from 430 trillion Hertz (which is red) to 750 trillion Hertz (which is violet). Waves can also go beyond and below those frequencies, but they're not visible to the human eye.
All light travels at the same speed, but each color has a different wavelength and frequency. It is their different wavelengths that cause the different colors of light to separate and become visible when passing through a prism.
WAVELENGTHS OF VISIBLE LIGHT
As the full spectrum of visible light travels through a prism, the wavelengths separate into the colors of the rainbow because each color is a different wavelength. Violet has the shortest wavelength, at around 380 nanometers, and red has the longest wavelength, at around 700 nanometers.
As you might expect, darker colors require less energy to illuminate, with black being the lowest energy color and white being the most energy intensive. What you might not expect is that blue pixels use approximately 25% more energy than red and green pixels.
Violet light has the highest frequency in the visible spectrum, and it goes as high as 750 THz.
Visible light is electromagnetic radiation with wavelengths ranging from roughly 400 and 700 nanometers. In physics, a color is visible light with a specific wavelength. Black and white are not colors because they do not have specific wavelengths. Instead, white light contains all wavelengths of visible light.
Blue and purple light have short waves, around 400 nm. Shorter waves vibrate at higher frequencies and have higher energies. Red light has a frequency around 430 terahertz, while blue's frequency is closer to 750 terahertz.
And just as we call different frequencies of light different colors, we call different mixes of sound frequencies different colors of noise. When we use our mouths to make the sound “shhh,” we get pink noise. Pink noise is shaded more toward the low end of the spectrum.
It is a common misconception that the Sun is yellow, or orange or even red. However, the Sun is essentially all colors mixed together, which appear to our eyes as white.
Frequency and Exact Color Measurements of the Rainbow
Light travels in waves, and its frequency is the number of wavelengths that pass a given point each second. A shorter wavelength results in a higher frequency and vice versa. Humans can see light between about 400 and 700 nanometers (nm) — the visible spectrum.
The colors of the visible spectrum listed in order of increasing wavelength are violet, blue, green, yellow, orange, and red. The color red has the longest wavelength, and the color violet has the shortest wavelength.
Orange: Energy, Happiness, Vitality.
The Short Answer:
Sunlight reaches Earth's atmosphere and is scattered in all directions by all the gases and particles in the air. Blue light is scattered more than the other colors because it travels as shorter, smaller waves. This is why we see a blue sky most of the time.
Violet light has a higher frequency and shorter wavelength than red light.
Humans can detect sounds in a frequency range from about 20 Hz to 20 kHz.