Brown Noise vs White Noise vs Pink Noise vs Green Noise

Check out our quick guide on YouTube Shorts to hear the difference and see which color might be your favorite.

White noise contains all audible frequencies played at the same intensity. It sounds like static or a 'hushing' sound. Because it covers all frequencies, it is exceptionally good at masking sudden, distracting sounds like doors slamming or cars honking.

Best for: Masking environmental noise, supporting infant sleep, and creating a neutral background in busy offices.

Pink noise is similar to white noise but has more energy at lower frequencies. This creates a softer, more balanced sound that many people find more natural than the harshness of pure white noise. Think of it like the sound of steady rain or wind rustling through leaves.

Best for: Improving sleep quality, relaxing without the 'static' feel of white noise, and long-term focus.

Brown noise (also called Red noise) goes even further than pink noise, focusing heavily on low-frequency bass. It sounds like a deep rumble, a distant waterfall, or the low hum of an airplane cabin.

Recently, brown noise has gained significant popularity in the ADHD community. Many people find that its deep, immersive quality helps 'quiet' a busy mind more effectively than higher-frequency sounds.

Best for: ADHD management, deep focus, intense relaxation, and those who find higher frequencies irritating.

Green noise is often described as the background sound of nature. It focuses on the middle frequencies, similar to what you might hear in a forest or by a quiet stream. It is less harsh than white noise and less bass-heavy than brown noise, finding a comfortable middle ground.

Best for: Creating a peaceful atmosphere, relaxation without heavy bass, and those who love natural-feeling soundscapes.

The 'best' color is entirely personal. We recommend starting with White noise if you need to block out specific loud noises, but switching to Pink or Brown if you find the higher-pitched static of White noise too sharp.

With Calma, you don't have to choose just one. You can mix different layers of noise, adding nature textures or atmospheric ambient sounds to create a truly personalized soundscape that works for your unique brain.