Every culture has its own associations with colors. But a number of colors are universal. White stands for peace, and black for war, and with red we see multiple interpretations. Red represents worldwide warmth, love, sex, romance, and danger.

Warnings are often red. Brake lights, traffic signs, the red traffic light, and warning lights are red. We can also stand red at the bank. Red is associated with danger and stands out.

I wonder why President Donald Trump often wears a red tie;)

Red is a good color to attract attention. Notifications are therefore almost always red. Just look at the bell notifications above, which indicates a red number.

The brightness of the color red and the contrast around it are both important. All ads are therefore often brightly colored and with a lot of contrast. If they were gray, it would be likely you lose the customers attention.

With your website you can also use eye-catching colors to attract the attention of your visitors.