Color Palette
Pick colors online or enter HEX, RGB, or HSL to instantly sync and convert every color code format.
Drag the picker or RGB sliders to sync color codes instantly
Tip: supports shorthand hex, six-digit hex, rgb(...), and hsl(...). Use Random color for ideas. For text/background readability, pair this page with the contrast checker.
Information Board Complete Guide: Carousel Displays, Announcement Design & Event Promotion Visual Techniques
Need to fit announcements, event images, and brand messages on one screen? A slideshow-style carousel is the most space-efficient solution. This guide covers three content modes, transition speed principles, text readability tips, and practical scenarios — plus a free online tool to build a professional board in under 5 minutes, no coding required.
Digital Image Processing: Color Space and Compression Performance Guide
Dive deep into digital image format selection, compression algorithm differences, and optimization strategies to balance quality and file size.
Online Image Compression & Editor: Guide to High-Quality Memes and Social Media Visuals
Want to create viral memes and social media posts, but restricted by large image sizes, incorrect dimensions, or dull colors? Learn how to use online image compression and color conversion tools to optimize your visuals instantly.
Charts Can Lie: Truncated Y-Axes, 3D Pie Charts, and Visual Design Traps Explained
A poorly designed chart can make a 5% increase look like explosive growth, and nearly identical numbers look worlds apart. Here's a breakdown of the most common chart manipulation techniques — truncated Y-axes, 3D effects, pie chart tricks — and how to avoid misleading your own readers when you make charts.
Color Contrast and Accessibility: WCAG Standards, Contrast Ratio Principles, and Design Improvement Tips
Color contrast ratio is a core metric in accessible web design, affecting readability for users with low vision, color blindness, and in varied lighting conditions. This guide explains WCAG 2.1 AA/AAA levels, relative luminance calculations, and common design mistakes with practical fixes.
The Complete Color Code Guide: RGB, HEX & HSL Explained
RGB, HEX, and HSL all describe the same colors — but in completely different ways. This guide breaks down the math, the design logic, and when to use each color model, from screen design to print and accessibility.