Simon Says Color Game - Online Memory Challenge
Watch and repeat the growing sequence of colored buttons. How long is your memory? Classic electronic game replica.
UD5 Toolkit
The challenge grows with each level—how far can your memory take you?
Watch and repeat the growing sequence of colored buttons. How long is your memory? Classic electronic game replica.
See a color swatch and guess its hex code. Get scored on accuracy. Improve your color intuition. Fun for designers.
Given an RGB value, pick the matching color square. Multiple difficulty levels. Improve your color perception. Fun for designers.
Experiment with the CSS color-mix() function. Pick two colors and mix them in different color spaces (srgb, oklch). Copy the CSS.
Create a random video game premise with a setting, protagonist, and twist. For game jams and creative writing. All local.
Feed, play, and care for a cute pixel pet inside your browser. Its state persists via localStorage. Don't let it die!
Classic hangman with linguistic terms (adjective, participle, etc.). Solidify your grammar vocabulary.
Upload a gradient or enter a palette and simulate how it appears with different types of color vision deficiency. Ensure inclusive data visualization.
See a cropped or simplified brand logo and guess the company. Hints available, score track. Local fun, no copyright infringement.
An interactive color wheel that teaches primary, secondary, tertiary colors, and harmonies. Pick and mix like a pro.
Enter hex codes and download a PNG swatch image with color names. Useful for design spec documents. Built via canvas.
Select two paint colors and see approximate mixed result. Visual blending for artists.
Answer a few questions and get a playful color-based personality result. For entertainment only.
Generate the <meta name='color‑scheme'> tag and CSS property to enable native dark/light rendering. Quick copy.
Build a small crossword by adding words and clues. Export as a printable grid or solve in browser. Perfect for classrooms.
Identify dog breeds from silhouettes or partial images. Score tracking. Fun for all ages. Local only, no images uploaded.
Click to generate a multi‑sensory room description for your tabletop RPG. Adds immersion to any dungeon crawl.
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.
Upload any picture and instantly get a 5‑color palette. Useful for UI design themes. Canvas‑based extraction.
Extract a color palette from an image using CIELAB k‑means quantization. Results are perceptually more accurate than RGB methods.
Enter two hex colors and compute the CIE76, CIE94, and CIEDE2000 color difference. Understand how humans perceive color similarity.
Convert any image into an 8‑bit indexed PNG by reducing to a custom number of colors. Vintage game look. Local quantizer.
Generate a small logic puzzle grid (like Einstein’s riddle) with clues. Solve in browser or print. Local generation.
Convert hex or RGB to CIELAB L*a*b* values. Understand perceptual lightness and color opponents. Local math.
Enter a website URL and apply a protanopia/deuteranopia/tritanopia filter. Test full page accessibility.
Generate a random placeholder photo with custom dimensions. Unique greyscale images, no external service. Canvas generated.
Enter the URL of any image and receive a random harmonious palette extracted from it. Click to regen. For quick inspiration.
Upload any image and view it as a person with deuteranopia, protanopia, or tritanopia would. Promote inclusive design.
Convert RGB and hex colors to CIELAB L*a*b* values. Understand perceptual lightness and chromaticity. All local math.
Hit the popping moles as fast as you can before they disappear. Increasing difficulty. Great for hand‑eye coordination. Browser only.