The most important element of interior design would be a functional space. Functional space acts as the base of the entire interior design. Therefore, it is essential that the user and designer both are well aware of the space availability and purpose of each individual space. A functional space would contain two type of space; A space that is filled with furniture or fixture (e.g. sofa, dining set, and etc) will be a positive space and a space that is empty (e.g. hallway, space between dining set and sofa) will be considered as negative space.
Colors establish an aesthetic connection between objects and set the mood. Colors must be chosen based on the psychology and the mindset of the dweller. For example, red is an excellent choice for dining room as it encourages appetite and green for bedroom as it is the color of tranquility and health. Each color has three distinct characteristics namely Hue, Value and Intensity, and an interior designer must be well aware of these characteristics to perform various permutations and combinations.
Light is one of the most critical elements of interior design. Either artificial lighting or natural lighting, no elements would be identified simply without the light. Light sets in the mood and ambiance into space together light will also highlight some of the other design elements with the prior to proper planning. Therefore, you may refer to the three major types of lights – Mood Lighting, Accent Lighting, and Task Lighting.
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Forms mean shapes in general, an outline of any three-dimensional object in the space. Forms can be created by combining two or more shapes and can be accentuated with the help of other elements like texture, patterns and colors. A well-defined form establishes harmony and additional forms add balance to the space. There are two types of forms – Geometric (man-made) and Natural (organic). Also forms are categorized as open and closed; open forms are those that can be looked into and closed forms are those that are enclosed by a closed surface. A solid understanding of the above mentioned elements i.e. space and line is required to achieve a good form.