Color introduction

Quick answer：

Color is a visual perception that is based on the properties of light. It is one of the most fundamental attributes of visual objects and plays a crucial role in human perception and culture. The color wheel is a common tool used to describe and organize colors. The primary colors are red, blue, and yellow, and all other colors can be mixed from these. Color theory, a field within art and design, studies the interaction and effects of colors. In the context of technology, colors are used to convey information and emotions in user interfaces and other digital media.