Greyscale / Desaturate a Color
Choose a color to calculate its greyscale value locally with a stated luminance formula.
HEX
RGB
HSV
HSL
Uses Rec. 709 relative luminance: 0.2126R + 0.7152G + 0.0722B. This is a numeric color conversion, not a color-vision test or claim.
A QUICK WALKTHROUGH
How to use this tool
- Choose a color.
- Apply the greyscale conversion.
- Read the HEX, RGB, HSV, and HSL outputs.
Luma formula
Greyscale uses Rec. 709 relative luminance: Y = 0.2126R + 0.7152G + 0.0722B, with RGB channels normalized to 0–255.
Color representations
The result is the same neutral color shown as HEX, RGB, HSV, and HSL. This is a numeric conversion and makes no color-vision or accessibility claim.
GOOD TO KNOW
Common questions
Which formula is used?
Rec. 709 relative luminance with coefficients 0.2126, 0.7152, and 0.0722.
What formats are shown?
HEX, RGB, HSV, and HSL.
Is this a color-vision test?
No. It is only a numeric color conversion.