Gas Action Plan submission - Coal Authority

CMRA Enquiry - Coal Authority

Bank details form - Coal Authority

Bank Account Details - Coal Authority

Expenses claim form - Coal Authority

Fraud Reporting - Coal Authority

Join the experts - Coal Authority

Project enquiry - Coal Authority

Communications and updates - Coal Authority

Mine Water Heat Updates - Coal Authority

Form controls must appear sufficiently distinct from their surroundings, so that people 
with visual impairments are still able to clearly see them.    

Either the border or the form control itself must have a 3:1 colour contrast with the 
surrounding area. 

## Methodology

* All `<input>`, `<textarea>`, and `<select>` elements are checked.
* For `<input>` elements, these types are ignored as their
  appearance is controlled by the browser or operating system:
  `checkbox`, `radio`, `submit`, `reset`, `image`, `hidden`, `file`. 
* The flattened background color of the control is determined. This is the color of the
  control itself, combined with any parent elements if the control is transparent.
* If the control has a border or outline:
  * The flattened background color of each edge is determined. 
    This is the color of the edge itself, combined with any parent elements
    if the edge is transparent.
  * If any edge has sufficient contrast with the flattened background color of the control, 
    the control is considered to have sufficient contrast.
* If the control does not have a border or outline:
  * The flattened background color of the surrounding 
    area is determined. This is the color of the first control's parent element which is at least 
    one pixel larger around the element in every dimension, i.e. above, below, left, and right.
  * If the background color of the element has sufficient contrast with surrounding area color
    the control is considered to have sufficient contrast.

## Troubleshooting

There are some limitations to the contrast checker:

* The use of drop shadows, glowing effects, gradients, and other complex effects 
  mean there is no one clear color to determine the contrast ratio against. 
  In these cases, the contrast ratio cannot currently be determined.
* It is possible for an element to be positioned over multiple elements, e.g. via
  `position: absolute` or `position: fixed`. In this case, the contrast ratio cannot 
  currently be determined.

## Further reading

* [WCAG 1.4.11](https://www.w3.org/WAI/WCAG21/Understanding/non-text-contrast.html)

non-text-contrast

June 2024

May 2024

The Coal Authority

Title / URL	Issues
Gas Action Plan submission - Coal Authoritywww2.groundstability.com/gas-action-plan-submission/	21
CMRA Enquiry - Coal Authoritywww2.groundstability.com/cmra-enquiry/	18
Bank details form - Coal Authoritywww2.groundstability.com/skewen/bank-details-form/	12
Bank Account Details - Coal Authoritywww2.groundstability.com/bank-account-details/	12
Expenses claim form - Coal Authoritywww2.groundstability.com/skewen/expenses-claim-form/	11
Fraud Reporting - Coal Authoritywww2.groundstability.com/fraud-reporting/	9
Join the experts - Coal Authoritywww2.groundstability.com/join-the-experts/	9
Project enquiry - Coal Authoritywww2.groundstability.com/ukreiif/project-enquiry/	7
Communications and updates - Coal Authoritywww2.groundstability.com/communications-and-updates/	7
Mine Water Heat Updates - Coal Authoritywww2.groundstability.com/mine-water-heat-updates/	7

Ensure form controls contrast sufficiently with their surroundings

The Coal Authority

Where this issue has occurred