Color Picker

About Color Picker Tool

The Glutool Color Picker helps designers and developers find, convert, and manage colors across different formats. Pick colors visually, enter values in HEX, RGB, HSL, or HSV, and get instant conversions between all formats with a history of recently used colors — everything you need for web design, CSS development, branding, and UI theming in one browser-based tool.

Understanding Color Models

Different color models serve different purposes. HEX (#FF5733) is the standard for CSS and web development — compact and widely recognized. RGB (Red, Green, Blue with values 0–255) maps directly to how screens display color. HSL (Hue, Saturation, Lightness) is more intuitive for human perception — adjusting lightness or saturation is straightforward without affecting the base hue. HSV (Hue, Saturation, Value) is used by many design tools like Photoshop and Figma. RGBA/HSLA add an alpha channel for transparency. This tool converts between all of these instantly.

Key Features

• Visual color picker — select colors from an interactive gradient canvas with hue, saturation, and lightness controls.
• Format conversion — instantly converts between HEX, RGB, RGBA, HSL, HSLA, and HSV color formats.
• Color history — keeps a visual history of recently picked colors for quick reference and reuse.
• Input flexibility — enter color values in any supported format and see conversions to all others.
• One-click copy — copy any color value to your clipboard in your preferred format.
• Live preview — see the selected color rendered in a preview swatch as you adjust values.

How to Use

1. Pick a color — use the visual gradient canvas to select a color, or type a HEX, RGB, or HSL value directly.
2. View conversions — all supported format values update instantly as you pick or enter a color.
3. Copy values — click on any format value to copy it to your clipboard for use in CSS, design tools, or code.
4. Reuse history — previously picked colors appear in the history strip for quick reselection.

Color Accessibility Tips

When choosing colors for web design, consider contrast ratios for accessibility compliance. WCAG 2.1 requires a minimum contrast ratio of 4.5:1 for normal text and 3:1 for large text. Dark text on light backgrounds (or vice versa) generally provides the best readability. Avoid relying solely on color to convey information — pair colors with icons, text labels, or patterns for users with color vision deficiencies. Use this tool to find colors that meet both your design aesthetic and accessibility standards.

Real-World Use Cases

• Finding the exact HEX or RGB code for colors to use in CSS stylesheets, Tailwind configs, or design tokens.
• Converting between color formats when switching between Figma (HSV), CSS (HEX/HSL), and JavaScript (RGB).
• Building color palettes for web design, branding guidelines, or UI component libraries.
• Extracting and converting brand colors from style guides for use in different development contexts.
• Experimenting with transparency values using RGBA and HSLA for overlays, shadows, and glass effects.