quicksheet-color

QuickSheet extension — color code converter and palette generator on your desktop wallpaper.

What it does

Type color: <expression> in any cell to instantly convert between color formats:

• Hex → RGB, HSL, CMYK, nearest CSS name, WCAG contrast ratios
• RGB → all formats
• HSL → all formats
• CSS named color → all formats
• Palette mode → complementary, analogous, triadic, tints, shades

Usage

Cell value	Output
color: #ff6600	HEX, RGB, HSL, CMYK, name, WCAG
color: rgb(255, 102, 0)	Same, parsed from rgb()
color: hsl(24, 100%, 50%)	Same, parsed from hsl()
color: orange	CSS named color lookup
color: palette #3b82f6	10-color palette (complementary, analogous, triadic, tints, shades)

Example output for color: #3b82f6

███ #3B82F6
  RGB   rgb(59, 130, 246)
  HSL   hsl(217, 91.2%, 59.8%)
  CMYK  cmyk(76%, 47%, 0%, 4%)
  Name  cornflowerblue
  Lum   0.215  WCAG vs ⬜ 3.9:1 (AA-lg)  vs ⬛ 5.5:1 (AA)

Palette mode output for color: palette #ff6600

🎨 Palette for #ff6600
  Base          ███ #FF6600
  Complementary ███ #0099FF
  Analogous+    ███ #FFCC00
  Analogous-    ███ #FF0000
  Triadic+      ███ #00FF66
  Triadic-      ███ #6600FF
  Tint +15%     ███ #FF9940
  Tint +30%     ███ #FFCC80
  Shade -15%    ███ #CC4000
  Shade -30%    ███ #992000

Install

In any QuickSheet cell:

ext: github:Deskworks/quicksheet-color

Requires QuickSheet and .NET 9 SDK.

Features

• Zero network — all conversions are pure math, works offline
• Zero NuGet dependencies — only BCL
• WCAG accessibility — contrast ratios against white/black with AA/AAA grades
• ANSI color swatches — visual color preview in terminal
• Closest CSS name — finds the nearest named color from all 140+ CSS colors
• Palette generator — 10 harmonious colors from any base color