Tagged accessibility

A categorical palette of n colour-blind-safe colours for chart series: Okabe-Ito or Paul Tol's bright scheme.

A form button in primary, secondary or warning style that stays focusable while loading (GOV.UK button).

Group related inputs under a legend, with a hint and error message described to the whole group (GOV.UK fieldset).

Wire a label, hint and error message to one form control by id, the accessible way (GOV.UK form group pattern).

WCAG 2.x contrast ratio between two colours, and which text colour reads best on a background.

Day, month and year boxes under one legend, with hint, error message and the boxes in error marked (GOV.UK date input).

A "There is a problem" box linking to each field in error, focused on arrival, built from a validator's fields (GOV.UK).

A password input with a Show/Hide button and an optional live checklist of a password policy (GOV.UK password input).

A labelled drop-down list with a hint, error message and an optional empty first option (GOV.UK select).

A labelled multi-line text box with hint, error and an optional live character or word count (GOV.UK).

One checkbox with its label beside it, such as "I agree to the terms" (GOV.UK single checkbox).

A question answered by ticking any of several checkboxes, with item hints and an exclusive "None" (GOV.UK checkboxes).

Choose exactly one of several radios, with item hints, an "or" divider and inline yes/no (GOV.UK radios).

A labelled single-line text input with hint, error message, autocomplete, prefix and suffix (GOV.UK text input).