In the vast panorama of art history, certain works stand out for their ability to capture moments of life with unparalleled delicacy. "The Blue Cup" by Édouard Vuillard is one such creation. This painting, emblematic of the Nabi movement, immerses us in an intimate universe where light and color blend to evoke deep emotions. By contemplating this piece, the viewer is invited to share a moment of tenderness and serenity, as if they themselves are part of the depicted scene. The composition, subtly arranged, embodies the essence of a poetic everyday life, where every detail matters. Style and uniqueness of the work "The Blue Cup" is distinguished by its bold use of color and its painting technique that borders on Impressionism. Vuillard, a virtuoso, handles tones with remarkable sensitivity, creating a warm and enveloping atmosphere. The central element, this cup of a vibrant blue, inevitably draws the eye, while floral motifs and fabric textures add a tactile dimension to the artwork. The characters, although present, seem almost to fade into the background of the objects surrounding them, thus reflecting the artist's fascination with the domestic world. The light, omnipresent, plays a crucial role, highlighting contours and revealing nuances of color, making this work a true dialogue between space and time. The artist and his influence Édouard Vuillard, an emblematic figure of the Nabi movement, transcended the conventions of his time to explore new artistic paths. Influenced by Symbolist ideas, he sought to express interiority and emotions through his works. His innovative approach to everyday life paved the way for a new vision of painting, where domestic life and intimate scenes become subjects worthy of interest. Vuillard surrounded himself with other artists, such as Pierre Bonnard, with whom he shared a common vision of art, focused on color and light. His legacy endures, inspiring generations of artists who continue to explore themes of intimacy