ORELA Art (NT503) study materials
ORELA Art (NT503) study resources

ORELA Art (NT503) key terms

ORELA Art (NT503) · Get comfortable with the vocabulary.

Elements of art

The basic visual building blocks used to describe and analyze artworks: line, shape, form, space, color, value, and texture. Teachers use them as a shared vocabulary for looking at and discussing art.

Related: Principles of design, Value, Texture
Principles of design

Organizing concepts that describe how elements of art are arranged in a composition, including balance, contrast, emphasis, movement, pattern, rhythm, and unity. They guide both making and critiquing artwork.

Related: Elements of art, Composition, Unity and variety
Line

A mark with length and direction, created by a moving point. Lines may be actual or implied, and their quality, weight, and direction convey mood, structure, and movement.

Related: Contour line, Gesture drawing, Elements of art
Shape

A two-dimensional area defined by an enclosing edge or by contrast in value, color, or texture. Shapes are geometric or organic and can be positive or negative.

Related: Form, Positive and negative space, Elements of art
Form

A three-dimensional object or the illusion of volume on a flat surface. Forms have height, width, and depth and may be modeled through shading or perspective.

Related: Shape, Value, Linear perspective
Value

The relative lightness or darkness of a color or gray tone. Value creates contrast, suggests light and shadow, and helps define form and depth in two-dimensional work.

Related: Chiaroscuro, Form, Color wheel
Texture

The surface quality of an artwork or material, either actual (tactile) or implied (visual). Texture can suggest material, evoke mood, and add variety to a composition.

Related: Elements of art, Collage, Impasto
Color wheel

A circular diagram arranging hues to show relationships such as complementary, analogous, and triadic schemes. It is a teaching tool for mixing and selecting color, not a physical law of light.

Related: Hue, value, and intensity, Complementary colors, Analogous colors
Hue, value, and intensity

The three properties of color: hue is the color name, value is its lightness or darkness, and intensity (saturation) is its purity or strength. Changing one alters the color's appearance.

Related: Color wheel, Tint and shade, Value
Complementary colors

Hues opposite each other on the color wheel, such as red and green or blue and orange. Placed side by side they create strong contrast; mixed as pigments they neutralize each other.

Related: Color wheel, Analogous colors, Simultaneous contrast
Analogous colors

Hues that sit next to each other on the color wheel, such as blue, blue-green, and green. They tend to produce harmonious, unified color schemes with limited contrast.

Related: Complementary colors, Color wheel, Unity and variety
Tint and shade

A tint is a color lightened by adding white; a shade is a color darkened by adding black. Both change value while keeping the original hue recognizable.

Related: Value, Hue, value, and intensity, Chiaroscuro
Positive and negative space

Positive space is occupied by the subject or shapes; negative space is the surrounding empty area. Artists use the interplay between them to define form and strengthen composition.

Related: Shape, Composition, Notan
Composition

The arrangement of visual elements within a work's boundaries. Compositional choices such as placement, scale, and cropping direct attention and shape how a viewer reads the image.

Related: Principles of design, Rule of thirds, Focal point
Focal point

The area of an artwork that first attracts and holds the viewer's attention. Artists establish it through contrast, isolation, placement, convergence, or unusual detail.

Related: Emphasis, Composition, Rule of thirds
Emphasis

A design principle that makes one element or area dominate so the viewer notices it first. Emphasis can be created by contrast, scale, color intensity, or placement.

Related: Focal point, Contrast, Principles of design
Contrast

The difference between elements such as light and dark, rough and smooth, or large and small. Strong contrast creates visual interest and can emphasize or clarify forms.

Related: Emphasis, Value, Simultaneous contrast
Balance

The distribution of visual weight in a composition. Balance may be symmetrical, asymmetrical, or radial, and it affects whether a work feels stable or dynamic.

Related: Principles of design, Composition, Unity and variety
Unity and variety

Unity is the sense that a work holds together as a whole; variety provides difference and interest. Effective compositions balance the two so work is neither chaotic nor monotonous.

Related: Balance, Pattern, Principles of design
Pattern

A repeated motif or arrangement of elements, often regular and predictable. Pattern can decorate a surface, create rhythm, or organize space across a composition.

Related: Rhythm, Unity and variety, Texture
Rhythm

The visual effect of repeated or alternating elements that guides the eye through a composition. Rhythm may be regular, progressive, or irregular, similar to beat in music.

Related: Pattern, Movement, Principles of design
Movement

The path the viewer's eye follows through an artwork, created by lines, edges, repetition, or directional cues. It can suggest actual motion or guide attention to a focal point.

Related: Rhythm, Focal point, Composition
Contour line

A line that describes the outer edge or a change of plane in a form. Contour drawings emphasize boundaries and volume without necessarily using shading.

Related: Line, Gesture drawing, Form
Gesture drawing

A quick drawing that captures the pose, movement, and energy of a subject rather than precise detail. It is used to study action and proportion.

Related: Contour line, Line, Proportion
Chiaroscuro

The use of strong contrasts of light and dark to model form and create dramatic depth. It became a hallmark of Renaissance and Baroque painting, especially in Italy.

Related: Value, Tenebrism, Tint and shade
Linear perspective

A system for representing three-dimensional space on a flat surface using vanishing points and horizon lines. Parallel lines appear to converge as they recede.

Related: Vanishing point, Form, Atmospheric perspective
Vanishing point

The point on the horizon where receding parallel lines appear to meet in linear perspective. One-point and two-point perspective use one or two such points.

Related: Linear perspective, Atmospheric perspective, Composition
Atmospheric perspective

A technique for suggesting depth by making distant objects paler, bluer, and less detailed. It mimics how the atmosphere affects the appearance of faraway forms.

Related: Linear perspective, Value, Form
Proportion

The size relationship between parts of a figure or composition, or between an object and its surroundings. Proportion affects realism, emphasis, and perceived scale.

Related: Gesture drawing, Composition, Form
Rule of thirds

A composition guideline that divides the frame into a three-by-three grid and places key elements near the intersections. It often produces more dynamic images than centering the subject.

Related: Composition, Focal point, Balance
Notan

A Japanese design concept emphasizing the balance of light and dark shapes. In art teaching, notan exercises use only black and white to study composition and positive-negative space.

Related: Positive and negative space, Value, Composition
Simultaneous contrast

The way a color appears to change depending on the colors adjacent to it. A gray looks warmer next to blue and cooler next to orange, a key idea in color instruction.

Related: Complementary colors, Contrast, Hue, value, and intensity
Impasto

Paint applied thickly so that brush or knife marks stand out from the surface. Impasto creates actual texture and catches light, and is associated with expressive painting.

Related: Texture, Medium, Brushwork
Medium

The material or technique an artist uses, such as oil paint, watercolor, clay, or digital pixels. The term can also mean the liquid that carries pigment in paint.

Related: Impasto, Collage, Printmaking
Collage

An artwork made by attaching papers, photographs, fabric, or other materials to a surface. Collage exploits texture and juxtaposition and is often used to teach composition.

Related: Texture, Medium, Mixed media
Mixed media

Artwork that combines more than one material or technique in a single piece. It allows students to explore relationships between drawing, painting, collage, and three-dimensional elements.

Related: Collage, Medium, Texture
Printmaking

Making multiple images from a prepared surface such as a woodblock, etching plate, or screen. Key processes include relief, intaglio, lithography, and screenprinting.

Related: Medium, Relief print, Edition
Relief print

A print made from a surface where raised areas carry ink and recessed areas stay blank. Woodcut and linocut are common relief processes used in classrooms.

Related: Printmaking, Edition, Medium
Edition

The total number of prints pulled from a single matrix, usually numbered and signed. Limiting an edition gives each print value and documents its place in the run.

Related: Printmaking, Relief print, Medium
Brushwork

The visible way an artist applies paint with a brush, including stroke direction, width, and energy. Brushwork can convey movement, texture, and the artist's individual hand.

Related: Impasto, Texture, Medium