The degree of legibility of a webpage is also influencing the degree of usability of a webpage. This paper will be focused on a research on what need to be considers to make sure a text displayed on a webpage is legible in terms of colour, font type and size against the background colour on full high definition (Full HD) display. The goal of this research is to come out with guideline on how to choose the best font with the right combination of colour and size to maintain the legibility when viewing on high definition displays. Based on the guideline, a tool will be developed to assist webpage designer to measure the legibility level of their webpage design by using Optical Character Recognition (OCR) technology and the new guideline. To achieve this goal a survey will be done to quantitatively measure the legibility of a combination of a font type, colour and size against the background colour.
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