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Color Picker & Converter

Pick any color and convert between HEX, RGB, HSL, RGBA, and HSLA with alpha transparency.

100% freeRuns in browserNo data sent to servers
100%
HEX
#CBF564
RGB
rgb(203, 245, 100)
HSL
hsl(75, 90%, 67%)
RGBA
rgba(203, 245, 100, 1)
HSLA
hsla(75, 90%, 67%, 1)

Color Blindness Simulation

Normal
#CBF564
Protanopia
Deuteranopia
Tritanopia

Color Palette

Complementary
Analogous
Triadic
Split Comp.

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How It Works

1

Pick or enter a color

Use the visual picker, or type a HEX, RGB, HSL, RGBA, or HSLA value directly into the input field.

2

Adjust alpha transparency

Use the alpha slider to set opacity from 0% to 100%. RGBA and HSLA outputs update in real time, with a checkerboard preview showing transparency.

3

Copy any format

Click Copy next to HEX, RGB, HSL, RGBA, or HSLA to grab that format. Click palette swatches to copy them too.

FAQ

What color formats are supported?
The tool converts between HEX (#RRGGBB), RGB, HSL, RGBA, and HSLA formats. Use the alpha slider to adjust transparency (0-100%), and the RGBA/HSLA outputs update automatically. You can input any format or use the visual color picker.
Can I paste a HEX code directly?
Yes. Paste or type a HEX code (with or without #), an RGB value, or an HSL value into the input field and all other formats update instantly.
Does it work offline?
Yes. Everything runs in your browser with no server dependencies.
What is the difference between RGB and HSL, and when should I use each?
RGB defines color by its red, green, and blue components -- natural for screens and code. HSL (Hue, Saturation, Lightness) is perceptually intuitive: hue is the color wheel angle, saturation is intensity, and lightness is brightness. HSL is better for creating color palettes and making systematic adjustments (e.g., "same color, 20% lighter").
How do I check color contrast for accessibility?
WCAG 2.1 requires a contrast ratio of at least 4.5:1 for normal text and 3:1 for large text against its background. After picking your foreground and background colors, use a contrast checker (like WebAIM's tool) with the HEX or RGB values from this converter. Aim for AA or AAA compliance.
Can I generate a color palette from a base color?
This tool converts between formats rather than generating palettes. To build a palette, take your base color in HSL, keep the hue fixed, and vary the lightness (e.g., 10%, 30%, 50%, 70%, 90%) for a monochromatic scale. Tools like Tailwind's color generator or Coolors.co can automate this process.
Does the Color Picker work on mobile devices?
Yes. The visual color picker, alpha slider, and all input fields are responsive. You can pick colors and copy HEX, RGB, or HSL values on any phone or tablet.
Is my data processed locally?
Yes. All color conversions run entirely in your browser. No data is transmitted to any server — the tool works even offline.
How do I convert a Tailwind CSS color class to a HEX value?
Tailwind color classes (e.g., bg-blue-500) map to specific HEX values defined in the Tailwind config. Look up the color in the Tailwind docs, then paste the HEX value here to get RGB, HSL, and other formats. This tool does not parse Tailwind class names directly.
What is alpha transparency and when do I need it?
Alpha (opacity) ranges from 0 (fully transparent) to 1 (fully opaque). RGBA and HSLA formats include an alpha channel for transparency effects — useful for overlays, glass effects, shadows, and layered UI elements. Use the alpha slider to preview how your color looks at different opacity levels.
Can I extract colors from an image?
This tool does not extract colors from images. For that, use browser DevTools (eyedropper in Chrome/Firefox), macOS Digital Color Meter, or online tools like Coolors image picker. Once you have the HEX value, paste it here to convert to other formats.
What other Coda One tools are useful for frontend development?
The <a href="/ai/dev/regex">Regex Tester</a> helps validate color format patterns. The <a href="/ai/dev/json">JSON Formatter</a> is useful when working with design token files. The <a href="/ai/dev/case-converter">Case Converter</a> can transform CSS property names between camelCase and kebab-case.

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Coda One's Color Picker & Converter is a free online developer tool that runs entirely in your browser. No data is sent to any server -- everything is processed locally for maximum privacy and speed. Part of the Coda One developer tools suite.

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