Skip to main content

Color Pickerv1.0.0

Reads a color from the native picker, HEX, RGB, HSL, or alpha entry, and writes it as HEX, RGB, RGBA, HSL, and HSLA strings with per-format copy buttons. HEX input accepts 3-digit shorthand (#F0C) and 6-digit values, with or without a leading hash; output case follows an uppercase toggle. A rolling palette of the 20 most recent colors persists in local storage and restores any on click.

Web Development
CSS
Color Theory
Reference

Documentation

Select any color visually with the native browser picker, or type values directly into HEX, RGB, or HSL fields. The tool instantly converts between all supported color models and presents copyable output strings ready for CSS, design software, or documentation.

  • Click the Color Selector swatch to open the browser native color picker. The HEX, RGB, and HSL fields update in real time as the selection changes.
  • Enter a hexadecimal value directly into the HEX field. Three-digit shorthand (#F0C) and six-digit values (#FF00CC) are accepted, with or without the leading hash symbol.
  • Type channel values into the R, G, and B fields (0 to 255) or the H (0 to 360), S (0 to 100), and L (0 to 100) fields to define a color numerically.
  • Adjust the A (alpha) field from 0 to 1 to set transparency. The RGBA and HSLA outputs reflect this value.
  • Click any Copy button next to an output to copy that color string to the clipboard. Enable Auto-copy HEX on pick in Settings to copy automatically on each new selection.
  • Recently selected colors appear in the Recent Colors palette. Click any swatch to restore that color, or use Clear Palette to remove all saved swatches.
  • Toggle Uppercase HEX output in Settings to switch between #FF00CC and #ff00cc formatting.
  • Click Pick Color as a manual trigger to recalculate outputs, or click Reset to clear saved state and return to the default color.
  • Share a specific color through URL parameters. Use ?hex=ff00cc or ?r=255&g=0&b=204 to pre-fill the tool when sharing links.

Identify, convert, and share color values across formats. Designers, developers, and content creators rely on the picker when building websites, preparing design specifications, or matching brand colors without leaving the browser.

  • Web Development: Convert a HEX brand color like #3366CC to its RGB equivalent (rgb(51, 102, 204)) for CSS rgba() declarations with custom transparency.
  • Graphic Design: Match a color from a client specification provided in HSL and convert it to HEX for tools that only accept hexadecimal input.
  • Brand Guidelines: Generate every required format (HEX, RGB, RGBA, HSL, HSLA) from a single brand color to populate a style guide or design system.
  • Accessibility Testing: Pick foreground and background colors to obtain exact values for contrast ratio checks in dedicated audit tools.
  • Email Marketing: Convert colors between formats for compatibility across email clients that support different CSS color syntaxes.
  • Presentation Design: Use the recent colors palette to maintain a consistent set while building slide decks or marketing materials.
  • Education: Explore how changes in hue, saturation, and lightness map to RGB channel values to build intuition about digital color representation.
  • Print Preparation: Identify precise RGB values from a visual selection to communicate accurate specifications to print vendors who require numeric definitions.
  • Data Visualization: Build sequential and diverging palettes by stepping through HSL lightness values, then export each stop as HEX or RGB for use in chart libraries, dashboards, and infographics.
  • UI Theming: Define semantic tokens like primary, surface, accent, success, and error from a single base color, then capture the converted values in design tokens that downstream code, Figma, and documentation consume.

Match the format to the medium. HEX is compact and dominant in CSS, RGB and RGBA support transparency in scripts and canvas drawing, HSL and HSLA make it easier to reason about hue and lightness when building related shades, and named colors stay readable in marketing copy. Save frequently used values to the recent colors palette so a project's full color story stays one click away across sessions.

Inputs, outputs, and what the Color Picker computes

The form above accepts the following inputs and produces the outputs listed below. This summary is rendered in the page so the parameters are visible to crawlers, assistive tech, and indexing agents that don't fetch the embedded tool frame.

Inputs

  • Color Selector (color input) · default: #3366cc
  • HEX (text input)
  • R (numeric input) · range: 0 to 255
  • G (numeric input) · range: 0 to 255
  • B (numeric input) · range: 0 to 255
  • A (numeric input) · default: 1 · range: 0 to 1
  • H (numeric input) · range: 0 to 360
  • S (numeric input) · range: 0 to 100
  • L (numeric input) · range: 0 to 100
  • Auto-copy HEX on pick
  • Uppercase HEX output

Controls

Reset · Clear Palette

Worked example

Select any color visually with the native browser picker, or type values directly into HEX, RGB , or HSL fields.