Which colours hide sweat best

Short answer: Sweat shows most clearly on mid tones. Black and white hide the most, while light blue, grey and pastel colours show marks most clearly of all, because they change the most when the fabric gets wet.

Why wet fabric shows

When fabric gets wet, it turns darker because the moisture changes how light hits the fibres. How much you notice depends on the colour. On some colours the difference between dry and wet is small, on others it is large. That difference decides whether a mark under the arm or on the back becomes visible during the day.

Black and white hide the most

On black, wet fabric barely shows, because the colour is already so dark it can hardly get darker. On white the contrast is small, because the wet patch only turns slightly greyer. That is why black and white are the safest choices on warm or active days. See bamboo T-shirts for women.

Mid tones show the most

Grey and light blue turn noticeably darker when wet. The gap between the dry and the wet area is large, so marks stand out clearly. The same goes for many pastel colours. If you sweat easily, it is worth keeping in mind before choosing a light grey for a busy day. See bamboo slips.

Light colours close to the body

Layers close to the body can also show sweat if the fabric is thin and the colour is a mid tone. If you wear a light dress or top, an inner layer can take some of the moisture before it reaches the outer one. Choose an inner layer in a colour that does not show itself.

Patterns hide too

A marled or patterned fabric breaks up the surface and hides marks. The eye has no even surface to compare with, so it is harder to see where the fabric is wet. That makes marled colours a good compromise if you want a lighter colour without marks showing so clearly. See bamboo sweatshirts for women.

Dark colours besides black

Navy, dark brown and dark green also hide sweat quite well, because they sit close to black in lightness. The difference between dry and wet is smaller than on light mid tones. If you want to avoid black but still have a colour that hides well, one of these deep shades is a calm everyday choice.

Fabric thickness plays a part

A thin fabric gets wet all the way through faster, and then the mark is easier to see. A slightly thicker fabric can take up more moisture before the surface changes colour. It also matters how easily the fabric lets air reach the skin, since that affects how quickly it dries after a warm spell.

Washing after warm days

Clothes that have been wet with sweat are best washed fairly soon. Do not leave them damp in a pile, but hang them to dry if they are not going straight into the machine. Wash light colours separately so they do not slowly turn grey, and follow the care label.

Frequently asked questions

Which colour hides sweat best

Black and white. On black wet fabric barely shows, and on white the difference between dry and wet is very small, so marks are hard to spot.

Which colour is worst

Grey and light blue. They turn noticeably darker when wet, so marks show most clearly. Many pastel colours behave the same way.

Do patterns help

Yes. A marled or patterned fabric breaks up the surface visually and makes wet areas harder to spot, because the eye has no even surface to compare with.