What is the valid range for X, Y, and Z?

For the D65 sRGB reference white, the normalized range is X=0–0.95047, Y=0–1.00000, Z=0–1.08883. Values above these bounds are accepted and the resulting RGB channels are clamped to 0–255. Some workflows express XYZ in percentage form (0–100); this tool uses the 0–1 normalized scale by default.

What happens when an XYZ color is outside the sRGB gamut?

Many XYZ colors cannot be represented in sRGB. This tool clamps each R, G, B channel to the 0–255 range, which produces the nearest displayable color. An out-of-gamut warning is shown when clamping occurs.

Which illuminant does this tool use?

D65 (standard daylight, 6500 K) with reference white Xn=0.95047, Yn=1.00000, Zn=1.08883. D65 is the standard illuminant for sRGB and is the most common choice for web and display work.

What does X=0.2126, Y=0.2126, Z=0.0 convert to?

X=0.2126, Y=0.2126, Z=0.0 produces approximately rgb(164, 130, 0) — a dark gold/olive color — because it contains red and green energy but no blue tristimulus component.

What is the difference between XYZ and sRGB?

CIE XYZ is a device-independent, absolute color space based on human cone response functions. sRGB is a device-dependent encoded color space designed for monitors. Converting XYZ to sRGB uses a fixed 3×3 matrix plus gamma encoding to map perceptual color coordinates to displayable values.

Does this tool send any data to a server?

No. All conversion math runs entirely in your browser using JavaScript. No data is transmitted anywhere.

XYZ to RGB Converter

Name: XYZ to RGB Converter
Availability: InStock
Author: Nham Vu

Enter CIE XYZ tristimulus values and instantly get the equivalent sRGB (0–255) color with a live preview swatch.

CIE XYZ Input

X 0.4124

Y (Luminance) 0.2126

Z 0.0193

#FF0000

RGB Output

R (Red)

G (Green)

B (Blue)

Conversion Steps

1 XYZ input: X=0.4124, Y=0.2126, Z=0.0193
2 XYZ → Linear RGB (D65 matrix): Rl=1.0000, Gl=0.0000, Bl=0.0000
3 Linear RGB → sRGB (gamma encode): R=1.000, G=0.000, B=0.000
4 Scale & clamp to 0–255: R=255, G=0, B=0 (#FF0000)

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Summary

Enter CIE XYZ tristimulus values and instantly get the equivalent sRGB (0–255) color with a live preview swatch.

How it works

Enter X, Y, and Z values using the number inputs or sliders (typical range 0–1 for normalized XYZ, or 0–100 for percentage scale).
XYZ values are multiplied by the inverse sRGB D65 matrix to produce linear RGB channel values.
Linear RGB is gamma-encoded with the sRGB transfer function (IEC 61966-2-1) to produce non-linear sRGB in the 0–1 range.
Values are scaled to 0–255 and clamped to the nearest displayable integer.
The HEX code and rgb() CSS string are derived from the clamped integers.
A live color swatch previews the result; out-of-gamut inputs are clamped to the nearest displayable color.

Use cases

Convert spectrophotometer XYZ measurements into web-ready RGB color codes.
Verify that a CIE XYZ color specification is within the sRGB gamut.
Translate color science data (ICC profiles, ΔE calculations) into CSS/HTML values.
Generate HEX codes from XYZ brand color definitions in standards documents.
Cross-reference CIE XYZ paint or ink specifications with digital sRGB equivalents.
Bridge colorimetry workflows with front-end development color systems.
Quickly estimate the sRGB appearance of an XYZ color from a color chart or research paper.
Build color palettes starting from device-independent CIE XYZ primaries.

Frequently Asked Questions

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Last updated: 2026-05-28 · Reviewed by Nham Vu