Greyscale Color Converter

Original Color
Greyscale
Professional Greyscale Workflows: Greyscale conversion is essential for print preparation, accessibility compliance, UI design systems, and monochromatic branding. Different conversion methods produce varying perceptual results—choose based on your use case.
HEX format is standard for web and digital design. Greyscale HEX values have equal R, G, B components (e.g., #808080).
RGB format is used for screen display. Greyscale RGB values have identical red, green, and blue components.
HSL format shows greyscale as 0% saturation with varying lightness. Useful for understanding perceptual brightness.
CMYK values are approximate for print. Greyscale in CMYK typically uses only black (K) channel, but conversion considers color balance for accurate reproduction.
Accuracy & Limitations

• Color Gamut: Some vibrant colors may lose subtlety when converted to greyscale

• Print vs Screen: CMYK conversions are approximations; always test physical prints

• Rounding: Values are rounded to nearest integer for RGB, 1% for HSL/CMYK

• Processing: All conversions happen client-side—your color data never leaves your browser

If you need to return to a full-color format after greyscale conversion, our RGB to HEX tool can help you reconstruct the color values for digital use.

Contrast Checker

Foreground
Background

Contrast Ratio: -

Enter colors to check contrast ratio

Accessibility Compliance

• WCAG 2.1 AA: 4.5:1 for normal text, 3:1 for large text (18pt+)

• WCAG 2.1 AAA: 7:1 for normal text, 4.5:1 for large text

• Greyscale designs require higher contrast ratios than colored interfaces