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Design Tools
Explainers on color formats, WCAG contrast, and aspect ratios for web and UI design.
3 articles
Hex vs RGB Color Explained
Hex and RGB are equivalent ways to express sRGB colors—#RRGGBB vs rgb(r,g,b) each channel 0–255.
Related tool: Color Converter
WCAG Contrast Basics
WCAG contrast ratio compares foreground and background luminance—4.5:1 minimum for normal text, 3:1 for large text.
Related tool: Contrast Checker
Aspect Ratio Reference for Images
Aspect ratio is width divided by height—common ratios include 16:9 video, 4:3 photos, 1:1 social squares, and 1.91:1 Open Graph.
Related tool: Image Resizer