All-in-One online color toolkit

Online Color Toolkit — Pick, Convert
& Analyze Colors

This Online Color Toolkit combines multiple color utilities into one browser-based workspace. Convert HEX, RGB, and HSL values, generate matching color palettes, test accessibility contrast ratios, and extract colors directly from uploaded images.

HEX to RGB converter Color palette generator Image color picker RGB to HEX WCAG contrast checker Pixel Picker
Active Color #1A6FBF All sections update from this color
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Color Converter
All formats from the active color
HEX
#1A6FBF
RGB
rgb(26, 111, 191)
HSL
hsl(210, 76%, 43%)
RGB Raw
26, 111, 191
HSL Raw
210, 76%, 43%
CSS Variable
--color: #1A6FBF;
🖌️
Palette Generator
Generated from the active color — click any swatch to set it as active
Contrast Checker
WCAG 2.1 accessibility — active color pre-loaded as foreground
The quick brown fox
Jumps over the lazy dog. Sample text with your color combination.
Small text — 12px. Accessibility matters.
14.7:1
Contrast Ratio
✓ PASS
WCAG AA
4.5:1 normal
✓ PASS
WCAG AAA
7:1 normal
✓ PASS
AA Large
3:1 large
✓ PASS
AAA Large
4.5:1 large
🖼️
Image Color Extractor
Extract dominant colors or pick any pixel — click a color to set it as active
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Drop image or click to upload
JPGPNGWebP
Analysing colors…
Extracted Colors 0

How to Use the Online Color Toolkit

Pick a color from any source — the color wheel, a typed HEX code, RGB sliders, or by clicking a pixel in an uploaded image. The active color (shown in the sticky bar at the top) instantly updates the converter, palette generator, and contrast checker — no tab switching needed. To explore image colors, upload any photo to the extractor, switch to Pixel Picker mode, and hover over the image to pick any pixel's exact color. You can also use our Compress Image Tool and Image Converter Tool for optimized design workflows.

Why This Online Color Toolkit is Different

Most color tools work in isolation — you pick a color in one tab, then manually enter it again in another. The Color Studio connects everything. One color selection simultaneously shows you all format conversions, generates a full palette in your chosen harmony, updates the accessibility contrast preview based on WCAG contrast accessibility guidelines, and lets you extract colors from real images. It also helps developers work faster with standardized formats aligned with CSS color value documentation. It is the closest thing to a browser-based Figma color panel.

Online Color Toolkit FAQs

Everything about the unified Color Studio.

How does the active color work?+
The active color is the single color that drives all sections on the page. Set it using the wheel, HEX input, RGB sliders, or by clicking a pixel in an image. Every time it changes, the converter, palette, and contrast checker update instantly — no clicks needed.
Can I pick a color from a photo?+
Yes. Upload any image in the Image Color Extractor section. Switch to "Pick Pixel" mode, then hover over the image. A magnifying loupe shows a zoomed view of the area. Click any pixel to pick its exact color and set it as the active color, automatically updating all other sections.
What is the contrast checker checking?+
The contrast checker calculates the luminance ratio between your foreground (text) color and background color. It checks all four WCAG 2.1 levels: AA Normal (4.5:1), AAA Normal (7:1), AA Large Text (3:1), and AAA Large Text (4.5:1). You can click "Use Active Color" to instantly load the current active color as the foreground.
Is anything stored or sent to a server?+
No. Everything runs entirely in your browser using JavaScript and the Canvas API. Your images, colors, and all tool outputs are processed locally and never sent to any server. No account, signup, or internet connection is required after the page loads.
Is this tool free?+
Yes, completely free. All features — color picker, converter, palette generator, contrast checker, and image color extractor — are available forever with no payment, signup, or usage limits.