What is the range of wavelengths in the visible spectrum?

The visible spectrum—the portion of the electromagnetic spectrum that the human eye can see—typically ranges from 380 nanometers (nm) to 750 nanometers (nm).

Within this range, different wavelengths correspond to the different colors we perceive:

• Violet: 380 nm to 450 nm
• Blue: 450 nm to 495 nm
• Green: 495 nm to 570 nm
• Yellow: 570 nm to 590 nm
• Orange: 590 nm to 620 nm
• Red: 620 nm to 750 nm

These boundaries aren't perfectly sharp, as the colors blend continuously into one another, and the exact limits of visibility can vary slightly from person to person.