The interface of RadColorPicker for ASP.NET AJAX is level AAA accessible (in compliance with the W3C Web Accessibility Guidelines 2.0) as well as Section 508 compliant. It passes the check of the WAVE automated content compliance tool for Section 508 and WCAG 2.0 - Compliance Level AAA.
If the CaptchaImage-EnableCaptchaAudio property is set to "true" the Captcha compliance level is A.
It also offers Localization.
The control is also visible in Windows High Contrast mode.