Professional color tools for designers and developers

Modern Color Picker Built for Designers

Pick colors, test contrast, create palettes, and export production-ready CSS from one clean workspace. Built for fast decisions, accessible interfaces, and polished brand systems.

WCAG contrast HEX RGB HSL CSS export No signup

Live workspace

Complete Color Picker

Select a color, adjust formats, test readability, and copy values instantly.

#6374F4
Contrast vs white 4.47
Contrast vs black 4.70
Best text Black

Generated Palette

Harmony

Free color toolkit

34 Free Online Color Tools

Converters, palette and gradient generators, CSS helpers, and accessibility checks. Everything runs in your browser with instant, copy-ready output.

Color Picker Pick any color and instantly get HEX, RGB, HSL, HSV, and CMYK codes plus the nearest color name. Color Code Converter Paste a HEX, RGB, HSL, or CSS color name and convert it to every other color format. HEX to RGB Converter Convert HEX color codes to RGB and RGBA values with a step-by-step breakdown of the math. RGB to HEX Converter Turn red, green, and blue values into a HEX color code, including 3-digit shorthand. Color Palette Generator Generate a 5-color UI palette with primary, secondary, accent, and neutral roles from one base color. Color Contrast Checker Check the contrast ratio of text and background colors against WCAG AA and AAA. Gradient Generator Create smooth two-color linear gradients and copy the CSS in one click. Image Color Picker Upload an image and click anywhere to get the exact HEX and RGB color of that pixel. HEX Opacity Calculator Add transparency to any color and get 8-digit HEX, RGBA, and HSLA values instantly. CSS Box Shadow Generator Design CSS box shadows visually with offset, blur, spread, color, and inset controls. Color Shades Generator Generate a 10-step scale of lighter and darker shades of any color for design systems. Tint, Tone and Shade Generator See the tints, tones, and shades of any color side by side with copy-ready values. Complementary Color Finder Find the complementary and split-complementary colors of any color for strong contrast. Color Harmony Generator Generate analogous, triadic, tetradic, split-complementary, and monochromatic color schemes. Color Wheel Tool See where your color sits on the color wheel along with its complement and triadic partners. Color Mixer Mix two colors by any ratio and get the blended color, a blend scale, and CSS color-mix(). Random Color Generator Generate random colors with HEX, RGB, and HSL codes for instant inspiration. Random Color Palette Generator Generate random yet harmonious 5-color palettes for fast creative exploration. Pastel Color Generator Generate soft pastel color palettes for gentle, elegant, and friendly designs. Neon Color Generator Generate bright neon colors and copy glowing text and button CSS effects. Multi-Color Gradient Generator Build three-stop linear gradients with a middle color and copy-ready CSS. CSS Gradient Code Generator Generate linear, radial, and conic gradient CSS code with a solid-color fallback. Animated Gradient Generator Create animated CSS gradient backgrounds with keyframes and reduced-motion support. Gradient Border Generator Create CSS gradient borders that work with rounded corners and copy the code. Tailwind CSS Color Generator Turn any color into a Tailwind 50–950 shade scale for tailwind.config.js or @theme. Glassmorphism CSS Generator Generate frosted glass UI effects with transparency, backdrop blur, and copy-ready CSS. Button Color Generator Generate hover, active, focus, and disabled button colors with accessible text. Light & Dark Theme Previewer Preview an accent color in light and dark themes side by side and copy the theme CSS. Image to Palette Extractor Upload an image to extract its dominant color palette, processed privately in your browser. Color Name Finder Find the closest CSS color name for any HEX or RGB code, with the top 5 matches. HTML Color Names Browse and search all 148 HTML and CSS named colors with HEX and RGB values. Color Inverter Invert any color to its negative and compare it with the true complementary color. Typography Contrast Tool Test text color readability at real font sizes and weights against WCAG rules. Color Blindness Simulator Simulate how two colors look with protanopia, deuteranopia, tritanopia, and achromatopsia.

Why fxcolorstudio

Fast, Private Color Tools That Respect Your Workflow

Every tool on fxcolorstudio runs directly in your browser. There is no account to create and nothing to install, and images you load into the image tools are never uploaded to a server.

Pick a color, check its contrast, build a palette, or generate production-ready CSS for gradients, shadows, and Tailwind scales, then copy the result straight into your design file or codebase.

Color design blog

Latest Color Guides

Practical guides on color theory, accessibility, CSS techniques, and building color systems that scale.

How to Create Animated Gradient Backgrounds in CSS

Build an animated gradient in CSS with background-position keyframes, calm timing, prefers-reduced-motion support, GPU-friendly layers and @property angles.

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Best Website Color Combinations (With HEX Codes You Can Copy)

12 of the best website color combinations with HEX codes you can copy, when to use each one, and how to adapt them to your brand while keeping text readable.

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Color Psychology in Web Design: What Each Color Communicates

A practical guide to color psychology in web design: what blue, red, green and other colors tend to signal, where meanings change, and how to use them well.

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CSS Box Shadow: How to Create Realistic, Layered Shadows

Master CSS box shadow syntax, then build realistic layered shadows with tinted colors, elevation tokens and dark-mode variants that look natural in any UI.

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CSS Gradient Borders: 3 Techniques That Work With Rounded Corners

Create a CSS gradient border that respects border-radius: border-image, the padding-box double background, and a mask trick for fully transparent centers.

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Glassmorphism in CSS: How to Build Frosted Glass UI That Stays Readable

Build glassmorphism CSS that works: backdrop-filter blur with the -webkit- prefix, @supports fallbacks, readable text on busy backgrounds, and fast mobile UI.

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Read All 34 Guides

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