As the most common painting form in China, oil painting has won people's love for its realism and artistry, and has broad market prospects. In fact, in order to express their feelings in the process of oil painting, painters often strengthen the use of color shading and cold and warm. Based on this, this paper focuses on the application of color in the process of oil painting creation, and discusses the role played by color application, and finally provides experience for the development of oil painting art in China.

Oil painting; Color; Light and shade; happiness

In the process of oil painting creation, painters often strengthen the rational use of cold and warm colors and light and shade in order to enhance the contrast of pictures and express their feelings. In fact, the warmth and coldness of color often have obvious correlation, and its application not only realizes the richness of painting content, but also embodies the inner emotional sustenance of painting. Based on this, this paper focuses on how to match cold and warm colors, light and shade in the process of oil painting creation to express the effect of color application.

First of all, define the main body of oil painting.

In the process of oil painting creation, in order to ensure the diversity of color expression, it is necessary for the painter to make clear the main environment of painting. Generally speaking, the cold and warm changes of painting objects will be influenced by external factors and the illumination angle of light source. For example, under the irradiation of incandescent light, the light-receiving surface of an object often shows the effect of cold light color, while the backlight surface shows the color effect of warm color. Based on this, painters often need to estimate the source and angle of light source when creating works, so as to realize the correct choice of painting color and ensure a higher sense of reality.

For example, under direct sunlight, white walls tend to have a warm color effect of orange (yellow), but the projected part of the object will have a cold purple-gray effect. Not only that, even if the wall is in the same shadow, its cool gray tone is still diverse. In fact, although this change of cool color tone is not subject to the painter's subjective control, it is closely related to the painter's psychological and physiological perspective. In the process of oil painting creation, the painter not only needs to grasp the diversity of colors, but also needs to ensure that the tone of the whole painting is coordinated and unified.

Second, strengthen the research on the creative ideas of excellent works.

Through the comparative analysis of oil paintings, it is not difficult to find that there are differences in the treatment of colors in oil paintings of different periods and schools. Therefore, in the process of oil painting creation, painters need to strengthen their understanding and copying of the creative ideas of famous paintings in various schools and periods.

Before Impressionism, painters often paid attention to the brightness of colors in the process of oil painting creation, while ignoring their cool and warm colors. Taking Rembrandt's oil paintings as an example, in the process of creation, he often expresses his feelings with the help of the element of "light", and strengthens the use of color lightness and contrast between cold and warm, thus enhancing the drama of his paintings. In fact, the use of high-brightness light can effectively highlight the theme of the work and further enhance the sense of space in the painting. Taking his work "Night Patrol" as an example, he highlighted several people's bodies and put others in a dark background with the help of light techniques when painting. This contrast between light and dark highlights the drama and profundity in the works to some extent. In addition, in this painting, the beige color of the little girl's skirt and the black color of Captain Cook's military uniform promote the balance and transition of the whole painting to a certain extent, increasing the layering and diversity of the picture colors.

The appearance of Impressionism has greatly changed the application of color contrast in the process of oil painting creation. Impressionism prefers to use conditional colors and pays attention to color expression in the process of painting. Moreover, impressionist painters pay more attention to the study of the relationship between painting and optics in the process of creating works, and pay attention to highlighting the color of the picture by means of color contrast, cold and warm, and complementarity.

Taking Renoir's oil painting "Woman in the Sun" as an example, the painter chooses green and blue to fill the human body color when creating, but this unconventional color method highlights the beauty and harmony of the picture. Not only that, Renoir also uses the contrast of cold and warm colors to highlight the light sense of sunlight and realize the authenticity of sunlight color.

In addition, the dark side of the painting uses more cold gray, which is mainly used to highlight mottled shadows. Renoir has also made great efforts in the expression of sunlight, and a small amount of warm colors can show the sunshine under the cracks of leaves. In fact, this bright color contrast can highlight the interest of the whole picture.

In a word, the appearance of Impressionism changed the tradition to a great extent, optimized the contrast between light and shade in creation, and paid more attention to the use of cold and warm colors, thus highlighting the dominant position of subjective color perception.

Third, integrate into the painter's unique personality.

In oil painting creation, in order to ensure the rational use of oil painting colors, the painter also needs to strengthen the use of self-personality, so as to ensure that the color effect in the painting can reflect the feelings of the viewer. Generally speaking, the cool and warm colors in oil paintings can guide viewers to understand the painter's emotions and become the media for painters to express their emotions. This color application method realizes the perfect combination of subjective and objective, so it can fully express the painter's emotions and arouse the audience's * * *.

In addition, the painter's mood often has a clear relationship with the cold and warm colors of oil paintings, but if the painter uses colors completely subjectively, it will often lead to the audience not singing. Based on this, the painter needs to ensure the unity and variability of color in the process of using color, and ensure that the picture reflects people's sense of * * *, thus helping viewers appreciate the charm of oil painting.

Four, color shading and cold and warm application matters needing attention

In order to ensure that painters can create high-quality paintings, it is necessary to strengthen the use of color shading and cold and warm techniques in the process of oil painting creation. In addition, in order to ensure the efficiency of each operation, the staff need to follow the related matters of oil painting creation. Regarding the matters needing attention in the application of color shading and cold and warm in oil painting, the author made a relevant summary, and the specific contents are as follows.

Before painting, the painter needs to make clear the color tone of the painting, determine the cold and warm color treatment of the subject and background, and choose the correct observation method. In this process, the operator needs to observe the whole painting object and object, judge by comparison, and reasonably determine the relationship between the pictures. In fact, the color of an object is often influenced by the color of the light source, so the painter needs to analyze the color of the light source. Generally speaking, under the influence of a cold light source, the bright part of a painting is cool, while the dark part is warm, and vice versa.

Based on this, in the process of painting, it is necessary to strengthen the analysis and discussion of the environment under the premise of considering the inherent color, realize the coordination between the environmental color and the inherent color, and highlight the rhythm of cold and warm colors. In this process, if the painter can't clearly distinguish between bright, cold and warm colors, he can divide them according to the strength of the two colors. Generally speaking, the colors of sunshine, fire and light in the morning and evening are warm, while the sunshine and skylight at noon and afternoon belong to the cold light series.

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In order to further improve the quality of oil painting creation in China, relevant personnel need to emphasize the lightness and coldness of oil painting colors in the actual operation process. Based on this, this paper analyzes, discusses and clarifies the main body of oil painting, strengthens the study of the creative ideas of excellent works, integrates the painter's unique personality, and discusses the matters needing attention in the application of color brightness, warmth and coldness in oil painting. The author believes that with the implementation of relevant measures, China's oil-cracked crops will surely develop by leaps and bounds, thus promoting the achievement of relevant achievements, ensuring the rapid development of China's cultural and artistic undertakings, meeting the cultural and artistic needs of social residents, and helping to promote me.

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