Color and Design Tools - Simple.Tools

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Check color contrast ratios for accessibility and readability against WCAG guidance.

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Generate matching color palettes for UI, branding, and design exploration.

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Pick and preview colors with HEX, RGB, and HSL values in one simple interface.

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Generate border-radius CSS for uniform or custom corner rounding with live preview.

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Generate CSS box-shadow values visually with preview and copy-ready code.

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Create CSS gradients with color stops, angles, and preview-ready output.

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Choose colors with a focused HEX workflow and quick conversion to other color formats.

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Convert HEX values into HSL for easier hue, saturation, and lightness adjustments.

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Convert HEX color values into RGB output for design and frontend workflows.

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Convert HSL colors into HEX format for faster frontend and design usage.

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Convert RGB colors into HEX format for CSS, design systems, and code use.

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Convert RGBA colors into HEX values with alpha support when relevant.

Category: Color and Design Tools