Thomas Hardy is one of the most outstanding novelists who have made great contribution to the English literature. Among all of his literary creations, Tess of the D’Urbervilles is one of his greatest. Today, more than 100 years after its publication, the readers and researchers worldwide are still deeply touched and moved by its moving plots and outstanding artistic writing styles. In Tess of the D’Urbervilles, Hardy frequently used the color of red. With the employment of the color red, Hardy vividly described to the readers about the life of the heroine-- Tess D’Urbervilles. To some extent, Tess is a “Red Girl”. This paper attempts to study Tess of the D’Urbervilles from the perspective of the red color. By analyzing the color of red, the character and the miserable fate of the protagonist is vividly presented to the reader.