Terms of Use

By using RGB Hex you agree to these terms. They’re intentionally short and plain.

The service

RGB Hex provides free, browser-based color tools — conversion, harmonies, contrast checking, gradients, palettes, theme building, and color-vision simulation. The tools are provided free of charge and on an “as is” basis, without warranties of any kind, express or implied, including fitness for a particular purpose.

Accuracy and professional judgment

The color math here is grounded in published standards and primary sources, cited in the References on each tool, and tested against known values. Even so, results are provided for design and development reference and are not legal, medical, or compliance advice. In particular:

• Meeting a contrast ratio here does not guarantee legal accessibility compliance. WCAG conformance is your responsibility and should be verified against the normative W3C specification and with real assistive technology.
• The APCA contrast score is labeled experimental throughout the site. It is proposed for the draft WCAG 3 and is not a current compliance standard.
• The color-blindness simulator is a model, not a medical instrument, and does not represent any individual’s vision.

Acceptable use

Use the tools for any lawful purpose. Don’t attempt to disrupt the service, abuse it at a scale that degrades it for others, or misrepresent its output as an official certification of accessibility or compliance.

Intellectual property

The site’s design, code, and written content are the property of their author. Color outputs you generate are yours to use freely. The color data is openly licensed: the catalog of color pages is built from the standard W3C/CSS named colors and the Tailwind CSS palette (MIT), and the nearest-named-color tool uses the meodai color-names dataset (MIT). RGB Hex deliberately excludes proprietary, license-restricted color-matching systems and their codes.

Limitation of liability

To the fullest extent permitted by law, the author is not liable for any damages arising from your use of, or inability to use, RGB Hex or its output.