Color Tools is a free app that works offline in your browser. It helps you work with colors and create custom background images. No account is required.

How to use:

• Color Picker: Upload an image, hover to preview colors, click to select, then copy HEX, RGB, or HSL values.
• Palette from Image: Upload an image, generate the top 5 colors, click a color to copy.
• Contrast Checker: Pick foreground and background colors, see the contrast ratio, and check if it passes WCAG accessibility rules.
• Gradient Maker: Choose two colors and an angle, preview the gradient, and copy the CSS code.
• Background Generator: Choose solid or gradient, set width and height in pixels, pick PNG, JPG, or WebP format. You can adjust quality for JPG/WebP, make solid backgrounds transparent (PNG/WebP only), and reset settings anytime. Click download to save the image.

Color Tools is simple, fast, and completely free to use.

Download Color Tools