May we use a cookie to count visits to this website? It only tells us which pages people read, so we can improve them. Nothing you do inside the app is ever shared. Privacy

Noise colours, explained

White vs pink vs brown noise

White, pink and brown noise are all steady "hiss" sounds; the difference is how much of the sound sits in the high or low notes. Play each one below and pick the one that feels easiest to have in the background.

Compare all three

Press play. Nothing plays until you do.

Brown noise

Deep and rumbly

Pink noise

Softer and deeper

White noise

Bright and even

Fade out after

Sound starts quietly and the volume is capped. Keep it low, and use headphones for the deepest notes: phone speakers can't play them. It stops when you leave this page.

The difference, side by side

White, pink and brown noise compared
NoiseWhere the sound sitsWhat it sounds likeOften chosen for
White noiseEven across all pitchesA sharp, bright hiss, like a fan or an untuned radioCovering lots of different sounds; some find it harsh
Pink noiseLess of the high endSofter, like steady rain or wind in the treesA middle ground if white feels too bright
Brown noiseEven less high end, most energy in the low notesA deep rumble, like a distant waterfallPeople who like a low, warm background; best on headphones

White noise

White noise has the same strength at every pitch, from the lowest to the highest. Because our ears are more sensitive to high sounds, it comes across as a sharp, bright hiss. It's good at covering a wide range of other sounds, but some people find it tiring after a while.

Pink noise

Pink noise has less energy in the high end, so it sounds softer and fuller than white noise. Many people compare it to steady rain or wind moving through trees. If white noise feels too sharp, pink is a good next one to try.

Brown noise

Brown noise drops off even more in the high notes, which leaves a deep, low rumble, like a distant waterfall or the hum of a plane. It's named after Robert Brown, who described the random movement the sound is modelled on, not after the colour. On phone speakers it can sound thin, because they can't play the lowest notes, so headphones bring it out best. For a player with a fade-out timer, see the brown noise player.

What the research does and doesn't show

Research on noise and sleep is mixed: some studies find steady sound helps people in noisy places, others find little or no benefit, and most are small. There is very little research on brown noise in particular. So treat any noise colour as a comfort choice, not a treatment.

If you use noise at night, keep the volume low and use a timer so it fades out rather than playing all night. You can read about the research behind every Reset Buddy feature, and its limits, on our science page.

Which should you try tonight?

There's no right answer, only the one you find easiest to ignore. Play each one for half a minute at a low volume. If one makes you notice it more, try another. Many people end up preferring pink or brown because they're less sharp.

If your mind is what's keeping you up, try the 3-minute wind-down for when you can't switch off at night: one line written down, low brown noise and slow breathing.

Calm sounds, plus a reset for the moment.

Reset Buddy has white, pink and brown noise, rain and nature sounds with a timer, sleep stories and End my day, plus a feelings wheel that matches a short reset to how you feel.

Start your free trial. After that, $4.99 a week, $9.99 a month or $79.99 a year. Cancel any time.

Ages 16+. A wellbeing tool, not medical or emergency care.