← HomeImage Preview — Grayscale

Paste or drop an image to see a grayscale preview for checking how colors will look when printed. Formula: Y = 0.299R + 0.587G + 0.114B (ITU-R BT.601 / typical printer grayscale)

📁 Select image or drag here

PNG, JPG, WebP · Ctrl+V to paste from clipboard

Original — hover for color, click to copy hex

Paste or drop an image

Grayscale (print preview)

Paste or drop an image

Color adjusters

Base color: pick from image (click) or enter hex

Palette from base (OKLAB harmony)

OKLAB L (lightness)

OKLAB L 0–100 (same a, b; perceived lightness) 53

#808080

Grayscale preview (result as gray): #808080