About this utility
How to use Color Converter & Contrast Checker
Convert HEX, RGB, or HSL colors and check WCAG contrast between two opaque colors.
What to provide
Use HEX, rgb(), or hsl() notation.
Use an opaque HEX, rgb(), or hsl() color.
- Paste, type, or drag and drop a supported text file into the input area.
- Place the second value in the adjacent panel. Sensitive fields are masked by default.
- Review the input and the clearly labeled output behavior.
- Select “Run tool” or press Ctrl/Command + Enter, then copy, download, or move the result back into the first input for another pass.
Use “Swap inputs” to reverse the comparison without copying either value.
What the result means
Normalized color values, contrast ratio, and WCAG AA/AAA results.
Privacy and safety
This utility is loaded as browser code and processes your input only in this tab. OmniCastConverter has no upload endpoint and never stores your content, filenames, tokens, or secrets. Generated markup and code are shown as inert text and are never executed.
Limitations
- Alpha channels, gradients, images, font weight, and surrounding UI are not evaluated.
Try the included example
Select “Load example” at any time to restore this tested sample.
#0057ff#ffffff