TC Screen Color Picker

TC Screen Color Picker is a desktop color inspection, pixel magnification, color-space conversion, and accessibility contrast utility for Linux.
An independent Linux alternative inspired by PowerToys ColorPicker for screen pixel sampling, multi-space color conversion, WCAG 2.1 contrast verification, and persistent palette management.

Key Features:
- Screen & Image Pixel Loupe: Captures real desktop screen pixels via Qt QScreen framebuffer grab or loads local PNG/JPEG/BMP/WebP images with an interactive 15x15 magnified pixel grid loupe and full-screen crosshair picker.
- Bi-Directional Color Space Converter: Instant mathematical conversion across HEX, RGB, HSL, HSV, and CMYK with ready-to-copy CSS rgb()/hsl(), Qt QColor, and ANSI terminal color snippets.
- WCAG 2.1 AA / AAA Contrast Checker: Computes exact relative luminance and contrast ratios for Normal Text, Large Text, and UI Graphics with live foreground/background preview and one-click accessible contrast adjustment.
- Color Harmony & Shades Generator: Interactive HSL color wheel computing Complementary, Analogous, Triadic, Split-Complementary, Tetradic, and 9-step Monochromatic Tints/Shades palettes.
- Persistent Palette History & Multi-Format Export: Automatically stores sampled color history in the user's real home directory JSON config and exports palettes to JSON, CSV, CSS/TXT, and GIMP GPL formats.
- Bilingual Interface: Instant Vietnamese and English UI switching.

Disclaimer: This project is an independent open-source utility built by TC Studio and is not affiliated with, sponsored by, or endorsed by Microsoft Corporation.