水粉（Gouache）.docVIP

水粉（Gouache） Basic knowledge of color 1. what are the basic theoretical knowledge of color? (1) color three elements: hue, brightness, purity Hue: the looks and names of colors. For example, red, yellow, blue and other colors. Lightness: the degree of brightness of a color. Such as yellow, lemon yellow, yellow, brown, dark yellow color. Purity: the brightness, saturation, or saturation of a color. (2) the blending of colors: general painting studies are about the mixing of pigments. In order to mix and enrich the colors, we must master the law and characteristics of color mixing. Primary colors: any pigment that cannot be blended and combined, also called primary color. Such as red, lemon yellow, blue. Color: mix and use any two colors in the RGB color. For example, red and yellow, yellow and blue, blue and red mixture of orange, green, purple is the color. Color: any two color or three color mixing and color is the color. For example, the black and opaque colors formed by the mixing of red, yellow and blue are double color. (3) the temperature of the color: some colors will form a warm feeling, such as red, orange, yellow and so on, will associate with the fire, the suns hot and warm, will also have a warm feeling in the heart. So we call red, orange and yellow warm colors. When you see the blue, green, purple and so on, you will associate with the blue sea and the cool shade of the trees, which will make you feel cold and cold in your heart. So we call blue, green and purple cool colors. 2., how to understand the objects solid color, light source color, environmental color? When light shines on the surface of an object, its absorption and reflection are not the same because of the different objects. According to the analysis of different objects, different color relations, we should pay attention to and understand the law of change of the three colors of objects. (1) solid color: refers to the color of the object itself, such as black hair, blue sky, white clouds,