For users to experience a quality service it must be built in a robust way.

Progressive enhancement is a way of building websites and applications based on the idea that you should make your page work with HTML first.

Only after this can you add anything else like Cascading Style Sheets (CSS) and JavaScript.

All government services must follow progressive enhancement, even if part of the service or a parent service needs JavaScript.

Discover beautiful color combinations your whole audience can appreciate and follow Web Content Accessibility Guidelines (WCAG) with ease.
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The color pairings follow WCAG 2.1 AA based on a contrast ratio of 4.5:1. The pairings have sufficient contrast for use with normal text, large text and graphics.

Graphics with scientific data become clearer when the colours are chosen carefully. It is convenient to have good default schemes ready for each type of data, with colours that are:

distinct for all people, including colour-blind readers;
distinct from black and white;
distinct on screen and paper;
matching well together.

This site shows such schemes, developed with the help of mathematical descriptions of colour differences and the two main types of colour-blind vision.

RT @LeaVerou: I made a new mini-app! Easy color contrast ratios

"When a color combination doesn’t pass WCAG, it usually is hard to read"

Web tool for guidance in choosing choropleth map color schemes, based on the research of Dr. Cynthia Brewer. Built and maintained by Axis Maps.

RT @assaf: firstName/lastName considered harmful: everything you need to know about the varieties of personal names ...