2.1 Demonstration of elements

The elements of graphic design are the basic visual building blocks that every design is made from: colour, line, space, shape, texture and value. A designer demonstrates the elements by creating and adjusting each one deliberately in software such as Adobe Illustrator, Photoshop, CorelDRAW, Inkscape or Canva, so that every mark on the page has a purpose. Knowing how each element behaves allows a designer to control what a viewer notices first, how the eye moves and what mood the design gives.

Example: a designer preparing a poster for a county health campaign in Nyeri uses bold shapes, a limited colour palette and generous white space so the message reads clearly from across a waiting room.

2.1.1 Colour

Colour is the element produced by light of different wavelengths and perceived by the eye as hue. It is the most emotive element in design: it attracts attention, groups related items, signals meaning and builds brand recognition. Designers describe colour by three properties: hue (the colour name, such as red or blue), saturation (its intensity or purity) and value (how light or dark it is).

Colour Models

• RGB (red, green, blue): an additive model used for screens; colours are mixed by adding light and white is all three at full strength.
• CMYK (cyan, magenta, yellow, key/black): a subtractive model used for printing; inks absorb light and designs for print must be converted to CMYK.
• Hexadecimal codes: six-digit codes such as #1A73E8 used to specify exact screen colours in web and app design.
• Pantone (spot colours): standardised numbered inks used where a brand colour must match exactly across printers.
• HSB/HSL: describes colour by hue, saturation and brightness or lightness, convenient when adjusting colour by eye.

Colour Schemes

• Monochromatic: tints and shades of one hue, giving a calm, unified look.
• Analogous: hues next to each other on the colour wheel, such as yellow, yellow-green and green, giving harmony.
• Complementary: opposite hues, such as blue and orange, giving strong contrast and energy.
• Triadic: three hues evenly spaced on the wheel, giving vibrant but balanced designs.
• Warm and cool colours: reds and oranges feel energetic and advance; blues and greens feel calm and recede.

Demonstrating Colour in Software

1. Set the document colour mode: choose RGB for screen work or CMYK for print when creating the file.
2. Pick a base colour: use the colour picker or enter a hex or CMYK value.
3. Build a palette: use a colour wheel tool (for example Adobe Color) to generate a scheme from the base colour.
4. Save swatches: store the palette as swatches so every element uses the same values.
5. Apply fills and strokes: apply colours to shapes, text and backgrounds.
6. Check contrast: test text and background combinations for readability and accessibility.

2.1.2 Line

A line is a mark connecting two points, the most basic element from which shapes and type are built. Lines can be straight, curved, thick, thin, solid, dashed or implied, and each kind carries a different feeling: horizontal lines suggest calm, vertical lines strength, diagonal lines movement. Designers use lines to divide space, direct the eye, create outlines and add decoration.

Types of Line

• Horizontal lines: suggest rest, stability and the horizon.
• Vertical lines: suggest height, strength and formality.
• Diagonal lines: suggest movement, energy and tension.
• Curved lines: suggest softness, flow and natural forms.
• Implied lines: not drawn but suggested, for example by a row of aligned objects or the direction of a person's gaze in a photo.

Uses of Line in Design

• Dividing content: rules separate sections of a page or columns of a newsletter.
• Directing attention: arrows and leading lines guide the eye towards a call to action.
• Creating shapes and icons: outlines form logos, icons and illustrations.
• Adding texture and pattern: repeated lines create hatching and backgrounds.
• Expressing mood: rough brush lines feel informal; clean geometric lines feel technical.

In software, lines are drawn with the line, pen or brush tools, and stroke settings control weight, colour, caps, joins and dash patterns.

2.1.3 Space

Space is the area around, between and within the elements of a design. Positive space is the area occupied by elements; negative space (white space) is the empty area around them. Well-managed space improves readability, gives a design a professional feel and makes important items stand out, while crowded designs look cheap and confusing.

Aspects of Space

• Positive space: the text, images and shapes themselves.
• Negative (white) space: empty areas that let the design breathe; it need not be white.
• Macro space: large spaces between major blocks such as margins and gaps between sections.
• Micro space: small spaces such as letter spacing (tracking), line spacing (leading) and padding inside buttons.
• Depth: the illusion of three-dimensional space created by overlap, size change, shadows and perspective.

Using Space Effectively

• Grouping: related items placed close together are read as one unit (proximity).
• Isolation: an item surrounded by space draws attention.
• Readability: adequate margins and leading make text easier to read.
• Clever negative space: a hidden shape formed by empty space, as in well-known logos, makes a design memorable.
• Consistency: using a spacing system, such as multiples of 8 px in interfaces, keeps layouts tidy.

2.1.4 Shape

A shape is a two-dimensional area enclosed by a line or defined by a change in colour, value or texture. Shapes are the main way designers build icons, logos, buttons and layouts, and people respond to them instinctively: circles feel friendly and complete, squares stable and trustworthy, triangles dynamic or directional.

Types of Shape

• Geometric shapes: circles, squares, rectangles and triangles with regular, mathematical edges; common in logos and interfaces.
• Organic shapes: irregular, natural shapes such as leaves and splashes; feel informal and natural.
• Abstract shapes: simplified representations, such as the stick figure on signs or icons.
• Positive and negative shapes: the shape of an object and the shape of the space around it.
• Form: a shape given the appearance of three dimensions through shading and perspective.

Demonstrating Shape in Software

• Shape tools: rectangle, ellipse, polygon and star tools create geometric shapes.
• Pen tool: draws custom vector paths for organic shapes.
• Pathfinder or shape builder: combines, subtracts and intersects shapes to build complex logos.
• Fill and stroke: give shapes colour, gradient and outline.
• Alignment tools: line shapes up to a grid for neat compositions.

2.1.5 Texture

Texture is the surface quality of an object, how it feels or looks as if it would feel. In print design, actual (tactile) texture comes from the paper or finish, such as embossing or linen stock; on screen, texture is visual, created with images, patterns and brushes. Texture adds depth, realism and character to flat designs.

Types of Texture

• Tactile texture: physically felt, such as embossed business cards, uncoated paper or spot UV varnish.
• Visual texture: an illusion created on a flat surface, such as wood grain, fabric or concrete effects.
• Natural texture: taken from nature, such as stone, sand or leaves.
• Artificial texture: man-made patterns such as halftone dots, grids or noise.
• Typographic texture: the grey tone a block of text creates on a page.

Using Texture

• Adding depth: texture makes flat backgrounds feel richer.
• Setting mood: grunge textures feel raw, paper textures feel handmade and craft-based.
• Supporting a theme: a fabric texture on a tailoring shop's flyer reinforces the trade.
• Software techniques: texture overlays, blending modes, pattern fills and texture brushes in Photoshop or Illustrator.
• Restraint: heavy texture behind text reduces legibility and should be toned down.

2.1.6 Value

Value is the lightness or darkness of a colour or tone, from white through greys to black. It creates contrast, depth and hierarchy: light areas seem to come forward and dark areas recede, and strong value differences make important items stand out. A design that still reads well when converted to greyscale has good value structure.

Aspects of Value

• Tints: a hue mixed with white, lighter in value.
• Shades: a hue mixed with black, darker in value.
• Tones: a hue mixed with grey, reduced in intensity.
• Value scale: a graded strip from white to black used to judge and match values.
• Value contrast: the difference between light and dark areas; high contrast is bold, low contrast is subtle.

Using Value

• Creating hierarchy: the darkest or most contrasting item is seen first.
• Modelling form: gradients from light to dark give shapes a three-dimensional look.
• Readability: text needs a strong value difference from its background.
• Mood: high-key (mostly light) designs feel airy; low-key (mostly dark) designs feel dramatic.
• Checking value: convert the design to greyscale in software to test the value structure.