A, pigment color matching method:
Description: Take acrylic pigment as an example to illustrate the color matching method of pigment.
Propylene pigment is a new type of painting pigment, which is made by mixing chemically synthesized emulsions (including acrylate, methacrylate, acrylic acid, methacrylic acid, thickener, filler, etc.). ) colored particles.
Propylene pigments appeared in the 1960s. Experiments show that it has many advantages that other pigments can't match: it is a flexible film after drying, strong and wear-resistant, water-resistant, corrosion-resistant, naturally aging-resistant, colorfast, non-deteriorating, non-reflective, easy to wash after painting, and suitable for easel painting, indoor and outdoor murals and so on. It can be stacked layer by layer to draw a heavy feeling; You can also add powder and appropriate amount of water to cover the overlapping parts with gouache-like painting, so that the picture level is rich and clear; If a lot of water is added to the pigment, the effect of watercolor and meticulous painting can be achieved, and the effect can be achieved through dry dyeing, blooming and overlapping layer by layer.
Pure and transparent.
Because of the high water content in the main blending agent of propylene pigment, it is more suitable to be coated on rough bottom surfaces that are easy to absorb water, such as cardboard, cotton cloth, wood board, fiberboard, cement wall surface, linen metal surface, stone wall and so on. You can use ordinary oil painting pen, painting knife, porcelain brush, watercolor pen, blackboard brush, sponge, loofah and so on. The palette and pen are mostly made of non-absorbent containers such as ceramics, glass and enamel to prevent them from being cleaned.
Adding white to any color in the pigment will make it pink or light. Pigments can be mixed at will and diluted with only a little water.
Acrylic pigments will dry immediately after the water evaporates, so when painting, you should know the procedure to make the strokes naturally connect and achieve the desired effect.
Second, the pigment palette.
Cooked brown = lemon yellow+pure black+rose red
Pink rose = pure white+rose.
Vermilion = lemon yellow+rose red
Dark red = rose red+pure black.
Purple = pure purple+rose.
Chu Shihong = Rose Red+Lemon Yellow+Pure Black
Pink blue = pure white+sky blue
Turquoise = grass green+sky blue
Grey blue = sky blue+pure black.
Light gray blue = sky blue+pure black+pure purple
Pink green = pure white+grass green
Yellow and green = lemon yellow+grass green
Dark green = grass green+pure black
Pink purple = pure white+pure purple
Brown = rose+pure black
Pink lemon yellow = lemon yellow+pure white
Garcinia cambogia = lemon yellow+rose red
Orange = lemon yellow+rose red
Khaki = lemon yellow+pure black+rose red
Hand-painted pigment palette
Rose+yellow = scarlet (vermilion, orange, gamboge)
Scarlet+black = brown.
Sky blue+yellow = grass green, light green
Sky blue+black+purple = light blue purple
Grass green+a little black = dark green
Sky blue+black = light gray blue.
Sky blue+grass green = blue-green
White+red+black small amount = stone red.
Sky blue+black (small amount) = dark blue
White+yellow+black = mature brown
Rose red+black (small amount) = deep red
Red+yellow+white = the color of the character.
Rose+white = pink rose.
Blue+white = pink blue
Yellow+white = beige
Note: Adding white to any color in the pigment will make it appear pink and light.
Pigments can be mixed at will, and only a little water is needed for dilution.
Here are some suggestions:
Basic technology:
1, dry painting and wet painting
Dry painting is a multi-layer painting method. Using the method of layer coating to color the dry background color does not require penetration effect, and it can be easily colored repeatedly, which is easier to master and suitable for beginners to practice. Positive expression, clear physical structure and rich color levels are the specialties of dry painting. The dry painting method can not only write articles on the word "dry", but also make people feel wet with water, avoiding the problem of dryness and boredom. Dry coating method can be layered coating, color masking, color collection, dry pen and other specific methods.
① coating:
That is, dry stacking, dry coloring, and colors are stacked one by one to express the object. There are different levels of coloring in the picture, some places can be done at once, and some places need to be done twice, three times or even more, but it is not advisable to count too many times to avoid losing the transparency of color. It can not be ignored that the layers of paint overlap after work, so as to predict the mixing effect of revealing the background color in advance.
② Cover color:
In fact, it is also a dry stacking method, and the color area of the mask is larger. For example, several colors in the picture are not uniform enough, so we have to mask the colors once to make them uniform. If a piece of color is too warm, a layer of cool color will change its cold and warm properties. The color of the cover should be bright Bo Tu, and it should be re-paved. Generally don't write back, otherwise the color will be dirty with the background color. This method is often used in the process of coloring and the final adjustment of the picture.
(3) color:
Dry color matching means that adjacent colors are painted from their sides after drying, and there is no infiltration between color blocks. Each color itself can also be wet coated to increase variation. This method is characterized by clear outline and bright colors.
(4) dry pen:
Write less water and more colors, and it is easy to fly white when writing; Drawing quickly on rough paper full of water will also produce flying white. The method of dry pen is often used to show the effect of flash or softness.
Wet painting can be divided into wet stacking and wet color collection.
(1) wet overlap:
Wet or partially brush the drawing paper, dry it and then color it, and dry it and then superimpose the color. Proper control of moisture and time will make the effect naturally mellow. Showing the rainy and foggy atmosphere and moist interest is its specialty, which is beyond the reach of some paintings.
(2) Wet color:
This method is often used when the color is close to the dry end, the water color flows through, the boundary is blurred, and the transition soft color gradient is displayed. When collecting color, the water list should be used evenly, otherwise the water will rush to less places, which will easily lead to unnecessary water stains.
Watercolor painting is mostly a combination of dry painting and wet painting. The picture with wet painting as the main part is dry painting, and the picture with dry painting as the main part also has wet painting. The combination of dry and wet painting is expressive, dense and dry, and interesting.
2, the mastery of moisture
The application and mastery of water is one of the key points of watercolor techniques. Water has the characteristics of infiltration, flow and evaporation in the picture, so you should be familiar with "water-based" when painting watercolors. Giving full play to the role of water is an important factor in watercolor painting. To master moisture, we should pay attention to time, air humidity and water absorption of drawing paper.
(1) Time problem:
The time of wet coating should be well grasped. If the colors overlap too early and too wet, it is easy to lose their proper shape. If it is too late, the background color will be dry, watercolor will not penetrate easily, and the connection will be stiff. Generally, when overlapping colors, the water content of the pen should be less and the colors should be more, which is convenient to grasp the modeling and make it penetrate. If the overlapping color is light, wait until the background color is slightly dry before applying.
② Dry humidity of air:
Draw a few watercolors, and you will realize that the water dries slowly indoors, and the water evaporates more slowly when painting outdoors in wet, rainy and foggy weather. In this case, draw less water; In a dry climate, water evaporates quickly, so use more water to speed up the painting of color matching.
③ Water absorption of drawing paper:
According to the water absorption speed of paper, master the water consumption accordingly. When the water absorption is slow, the water can be less, the paper is softer and absorbs water faster, so it is necessary to increase the water. In addition, large-scale rendering of halo colors, such as sky, ground, still life, people background, etc., should use more water, and should use all water; Use less water to describe parts and details.
3. "Blank" method
Compared with the techniques of oil painting and gouache painting, the most prominent feature of watercolor technique is the method of "leaving blank". Some light and white parts need to be "left blank" when drawing dark colors. The transparency of watercolor pigments determines this painting technique. Light color cannot cover dark color, unlike gouache and oil painting, which can be covered with light color and white powder. Pay attention to watercolor works, and you will find that almost every one uses the technique of "leaving blank".
Proper and accurate blank or light color will enhance the vividness and expressiveness of the picture; On the other hand, improper blank space will easily lead to trivial and messy pictures. Mark the blank with a pencil before coloring. When coloring, you should skillfully omit the key details, that is, dots and faces. In addition, where the contrast colors are adjacent, the other side should be empty and colored separately to maintain their uniqueness. Some beginners leave unnecessary empty shapes and then paint colors along the outline. Some people leave empty places dead, too rigid, and lose vitality along the outline. Empty is accurate and vivid, and it is the embodiment of skilled skills. Repeated practice in practice makes perfect.
I hope it helps you.