Image Luminance & Grayscale

Tag: Image Luminance & Grayscale

2+ tools

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Relative Luminance Calculator - Online WCAG Metrics

Enter a hex color and get its relative luminance per WCAG definition. Understand why this matters for contrast.

Accessibility calculator color luminance WCAG

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Perceived Brightness Calculator - Online Luminance Formula

Calculate the perceived brightness of an RGB color and determine if black or white text is more readable. Accessibility tool.

Accessibility accessibility brightness luminance WCAG