The retro interior design style evokes the design of past decades, typically blending the styles of the 1950s, 60s, and 70s. Retro style does not have a single, strictly defined form or color scheme, as the diversity of eras and designers allows for many variations. However, there are characteristics that often appear in this style.

Characteristics of Retro Interior Design:
- Color Scheme: The retro style is characterized by cheerful, vibrant colors. Honest and bright shades, such as orange, lime green, turquoise, and yellow, are often found. Pastel colors, such as powder pink or baby blue, are also common.
- Forms: In terms of forms, the retro style favors angular, geometric shapes but also incorporates rounded and organic forms. Simple, characterful shapes can be found in both furniture and accessories.
- Patterns: Geometric patterns, such as stripes, squares, and circles, are popular. Floral patterns are also common, especially on wallpapers and textiles.
- Material Properties: The materials in the retro style can vary widely. Wood, plastic, metal, and glass are all present. Interesting textures and patterned materials are often seen on furniture.
- Nature of Furniture: Retro furniture often features simple, clean lines. They are characterized by lightness, functionality, and playful elements, and colorful, loose cushions are frequently found.
Conditions of its Formation: The retro interior design style is a nostalgic reinterpretation of the fashion and design of past decades, inspired by periods from the mid-20th century to the 1970s. People love the retro style because the design of old times is unique, playful, and timeless. Retro objects and furniture often create a nostalgic feeling and simultaneously create a unique and cheerful atmosphere in the home.