UD5 Toolkit
Webcam Color Detector - Online Live Hue Picker
Point your camera at an object and see the dominant color in real time. Click to copy the hex. Fun tool for designers.
Dominant Color Detector - Online Find Main Hue
Dominant Color Detector
Upload an image and instantly find its main hue and color palette.
Drop image here or click to browse
Supports JPG, PNG, GIF, WebP
Dominant Hue
#808080
RGB(128,128,128)
HSL(0,0%,50%)
Color Palette
Upload an image to see palette
Frequently Asked Questions
The dominant color is the most frequently occurring hue in an image, often used to represent the overall feel or theme of the visual.
It resizes your image locally (no upload to server), scans every pixel, groups similar colors, and determines the most frequent ones. All processing happens in your browser.
The algorithm aggregates every pixel, so a large background area (like white sky) may dominate. Try cropping the image to the area of interest for better results.
Absolutely! Upload your logo or any image, and the palette section will show the top 5 to 8 dominant colors, which you can use for branding.
No. The tool runs entirely in your browser using HTML5 Canvas. Your image never leaves your device.
Image Color Picker From URL - Online Remote Picture Analyzer
Enter the URL of any online image and extract its dominant colors or pick colors with a magnifier. No upload, cross‑origin friendly.
Image Color Extractor - Online Palette from Picture
Upload an image and extract its dominant colors or full color palette. Download as a CSS snippet or color swatch. Entirely client-side, your images stay private.
Image Color Palette from URL - Online Remote Photo Analysis
Enter an image URL and extract its dominant color palette. No download needed. Fast visual analysis.
Image Color Histogram - Online RGB Channel Graph
Upload an image and see its RGB and luminance histograms. Understand exposure and color distribution. Photographer tool.
HSL to HEX Converter - Online Hue Saturation Lightness to Hex
Convert HSL and HSLA color specifications back to standard HEX codes. Useful when extracting colors from CSS preprocessors. Instant client-side conversion.
Image Negative Filter - Online Invert Colors Photo
Apply a true negative color effect to your image. Simulate a film negative or invert scanned documents. Instant canvas transformation.
Extract Perceptual Palette - Online LAB Quantization
Extract a color palette from an image using CIELAB k‑means quantization. Results are perceptually more accurate than RGB methods.
Extract Color Palette from Image URL - Online Without Upload
Enter an image URL to extract a 5-color dominant palette. Avoids uploading files. Uses canvas to read remote image pixels. Fast and privacy-oriented.
Live Page Color Blindness Check – Online Enter URL
Enter a website URL and apply a protanopia/deuteranopia/tritanopia filter. Test full page accessibility.
Image Edge Detector - Online Sobel & Canny Filter
Run edge detection algorithms (Sobel, basic Canny) on images directly in the browser. Great for learning computer vision concepts.
Color Distance ΔE Calculator - Online Perceptual Difference
Enter two hex colors and compute the CIE76, CIE94, and CIEDE2000 color difference. Understand how humans perceive color similarity.
Color Contrast Ratio Tester - Online WCAG AA/AAA Check
Enter foreground and background colors to instantly see the contrast ratio and pass/fail for AA and AAA. Simple and fast.
Online Color Picker - Eye Dropper & Color Selection Tool
Pick colors from a palette or use the eye dropper to sample colors from your screen. Converts between HEX, RGB, HSL. An essential tool for designers.
Image Brightness & Contrast Slider - Online Photo Tune
Quickly adjust the brightness and contrast of an image with live preview sliders. Download the tuned photo. Canvas.
OKLCH Color Explorer - Online Perceptually Uniform Space
Browse the OKLCH color space with sliders for lightness, chroma, and hue. See the CSS oklch() code. Modern and accessible.
Image Difference Checker - Online Visual Compare
Upload two images and see a diff overlay highlighting the pixel differences. Adjust tolerance. For regression testing.
Night Vision Green Effect - Online Photo Style
Add a dramatic night‑vision green tint with grain and scanlines to any image. Fun horror/military aesthetic.
Extract Colors from Image URL - Online Palette Generator
Paste a direct link to an image and get its 5 dominant colors with hex codes. No upload, uses canvas with CORS proxy.
OKLCH Color Picker & Converter - Online Perceptive Color
Select colors in the OKLCH space with lightness, chroma, and hue. Convert to hex, RGB, and CSS oklch(). Perceptually uniform gradients.
Image Color Quantizer - Online Reduce Colors to 8‑bit Palette
Reduce the number of colors in an image to a retro 8‑bit look. Uses median cut quantization in the browser. Preview and download the stylized result.
Image Saturation Adjuster - Online Color Pop Editor
Increase or decrease the color saturation of your photo with a slider. Preview instantly. Download the edited image. Canvas‑based.
Color Guessing Game - Online RGB to Color Challenge
Given an RGB value, pick the matching color square. Multiple difficulty levels. Improve your color perception. Fun for designers.
Interactive Color Wheel - Online Learn Color Theory
An interactive color wheel that teaches primary, secondary, tertiary colors, and harmonies. Pick and mix like a pro.
Random Color Naming Challenge - Online Eye Test
See a random color and type its name. Score based on accuracy. Fun for designers. Local.
RGB to CIELAB Converter - Online Perceptual Color Space
Convert RGB and hex colors to CIELAB L*a*b* values. Understand perceptual lightness and chromaticity. All local math.
Color Swatch Image Generator - Online PNG Palette
Enter hex codes and download a PNG swatch image with color names. Useful for design spec documents. Built via canvas.
Gradient Color Blindness Simulator - Online Test Palettes
Upload a gradient or enter a palette and simulate how it appears with different types of color vision deficiency. Ensure inclusive data visualization.
Accessible Color Pair Grid - Online WCAG Matrix for Vision Deficiencies
Enter foreground and background colors and see a matrix of how each pair works for normal, protanopia, deuteranopia, and tritanopia.
RGBA to CIELAB Converter - Online Full Color Translation
Convert RGBA colors to CIELAB and other advanced color spaces. For fine‑tuning design tokens. Client‑side math.