Glossary

Searchable terminology from accessibility, web standards, and related fields.

13 results found in Visual Design.

CIE L*a*b* (CIELAB, Lab Color Space, CIE Lab)
A perceptually uniform colour space defined by the International Commission on Illumination (CIE) in 1976, where the numerical distance between two colour values approximates the perceived visual diff…
CIE LUV (CIELUV, CIE 1976 L*u*v*)
A perceptually uniform color space defined by the International Commission on Illumination (CIE) that separates color into luminance (L*) and two chromaticity coordinates (u* and v*). Unlike RGB, whic…
Classical Aesthetics (Classical Design Aesthetics)
A dimension of visual aesthetics in web design characterised by simplicity, clarity, orderliness, and visual cleanness. Classical aesthetic principles are rooted in early visual design traditions that…
Color Adaptive Graphics (Colour Adaptive Graphics)
A technique for automatically adjusting the colours in graphical content so that objects maintain similar colour contrast relative to their reference background colours, regardless of the viewing cont…
Color Gamut (Colour Gamut, Gamut)
The complete range of colours that can be represented or reproduced by a particular colour space, display device, or visual system. In the context of colour vision, a trichromat's gamut encompasses th…
Color Space (Colour Space, Color Model)
A mathematical model that describes the range of colours that can be represented as numerical values, typically using three or more coordinates. Common colour spaces include RGB (red, green, blue), us…
Expressive Aesthetics (Expressive Design Aesthetics)
A dimension of visual aesthetics in web design characterised by creativity, originality, visual sophistication, and design ingenuity. Identified by Lavie and Tractinsky as one of two main dimensions o…
Focus Indicator (Focus Ring, Visible Focus, Focus Outline)
A visual cue that shows which interactive element on a page or in an application currently has keyboard focus. Focus indicators are typically rendered as an outline, border, or highlight around the fo…
Icon (Icons, UI Icon)
A small graphical symbol used in graphical user interfaces (GUIs) to represent an application, file, function, or object. Icons rely on visual recognition rather than text reading, which can be both a…
Iconography (Icon Design, Icon System)
The design and systematic use of visual symbols to convey meaning in an interface. Good iconography balances recognisability, consistency, and cultural appropriateness so that users can interpret symb…
Inter-Icon Spacing (Icon Spacing, Icon Gap)
The amount of empty space between icons or interactive targets in a graphical user interface. Inter-icon spacing affects a user's ability to visually distinguish, locate, and accurately select individ…
Typeface Classification (Font Classification, Typeface Categories)
The set of broad categories used to describe and compare typefaces. The most common groupings are: serif (letters with small projecting strokes at terminals, e.g. Times, Roboto Serif), sans-serif (no …
Web Aesthetics (Visual Aesthetics, Website Aesthetics)
The study and application of visual appeal in web design, encompassing how users perceive and respond to the visual qualities of websites. Research has identified two main dimensions of web aesthetics…