A mark on a surface that describes a shape or outline. It can create texture and can be thick and thin.
Types of line
Actual
Implied
Vertical
Horizontal
Diagonal
Contour
Horizontal lines
Lines of repose and serenity. They express ideas of calmness and quiescence.
Vertical lines
Poised for action. They are poised, balanced, forceful, and dynamic. They express an impression of dignity.
Diagonal lines
Suggest action and movement. They give animation to any composition in which they appear.
Curved lines
Suggest grace, movement, flexibility, and joyousness.
Repetition
When two or more lines are drawn within a corner following the lines of the corner.
Contrast
Lines that are in opposition to each other.
Transition line
A line that connects two workflow elements. Transition lines allow you to define what the next step in a workflow will be.
Color
An element of art with three properties: Hue, Intensity, and Value.
Hue
The name of the color, e.g. red, yellow, etc.
Intensity
The purity and strength of the color such as brightness or dullness.
Value
The lightness or darkness of the color.
Primary colors
The three basic hues from which all other hues can be mixed.
Color wheel
An abstract illustrative organization of color hues around a circle, that shows relationships between primary, secondary, and tertiary colors.
Tints
Values above the normal.
Shades
Values below the normal.
Intensity
The brightness or darkness of color. It gives color strength.
When a hue is in vividform, it is said to be in full intensity.
When a hue is dulled, it is said to be partly neutralized.
Psychological and emotional connotations of colors
Black is associated with death and gloom
White stands for purity and innocence
Red is associated with blood, anger and fear
Green implies happiness and abundance
Meanings of colors conveyed by the rose
Red is for I love you
Pink conveys Thank you
White says You are heavenly
Coral speaks of desire
White roses denote secrecy, reverence and humility
Deep pink roses convey gratitude and appreciation
Light pink expresses sympathy, grace and gentility
Red roses also mean courage and fortitude
Yellow roses stand for freedom
Red and Yellow stand for jovial/happy feelings
Orange roses speak of enthusiasm and desire
Red and White convey unity
Texture
The element that deals more directly with the sense of touch. It has to do with the characteristics of the surface, which can be rough or smooth, fine or coarse, shiny or dull, plain or irregular.
Perspective
The effect of distance upon the appearance of objects, by means of which the eye judges spatial relationships.
Linear perspective
The representation of an appearance of distance by means of converginglines. It has to do with the direction of lines and with the size of objects.
Foreshortening
The representation of objects or parts of the body as smaller from the point of view of the observer.
Aerial perspective
The representation of relative distances of objects by gradations of tone or color. Objects become fainter in the distance due to the effect of the atmosphere. Objects appear to be lighter in color as they recede into the distance or atmosphere.
Space
Distances or areas around, between or within components of a piece. Space can be positive (white or light) or negative (black or dark), open or closed, shallow or deep and two dimensional or three dimensional.
Kinds of space
Positive space
Negative space
Positive space
The areas in a work of art that are the subjects, or areas of interest.
Negative space
The areas around the subjects, or areas of interest.
Form
The overall design of a work of art. It describes the structure or shape of an object.
Organicform
Irregular in outline, and often asymmetrical. Organic forms are most often thought of as naturally occurring.
Geometric form
Corresponds to named regular shapes, such as squares, rectangles, circles, cubes, spheres, cones, and other regular forms.
Volume
The amount of space occupied in three dimensions. It refers to solidity or thickness.