What sRGB stands for
sRGB stands for standard Red-Green-Blue. It is a color space defined in 1996 by Microsoft and HP as the default color standard for monitors, printers, and the internet.
If a website, photo, or SDR video does not specify a color profile, it is assumed to be sRGB.
Why sRGB exists
In the late 1990s, CRT monitors, consumer scanners, and printers each used slightly different color primaries. The same image looked different on every device. sRGB gave everyone a common target: a specific white point (D65, 6500K), specific RGB primaries, and a specific gamma curve (~2.2).
Once content creators and display makers agreed on sRGB, images could be shared with a reasonable expectation they would look the same everywhere.
sRGB color gamut
The sRGB gamut is a triangle on the CIE 1931 chromaticity diagram with corners at:
This triangle covers about 35% of the visible color spectrum. Compared to newer color spaces:
When sRGB is enough
For these uses, 100% sRGB coverage on your monitor is the target. Anything less (like a laptop with 60% sRGB) will produce washed-out colors.
When sRGB is not enough
In these workflows you want a wide-gamut monitor with an accurate sRGB emulation mode for cross-workflow compatibility.
sRGB vs DCI-P3
| Feature | sRGB | DCI-P3 |
|---|---|---|
| Year | 1996 | 2005 |
| White point | D65 | D63 / D65 |
| Coverage of visible spectrum | ~35% | ~45% |
| Primary use | Web, SDR video | HDR video, cinema, phones |
| Gamma | ~2.2 | ~2.6 (cinema) or ~2.2 (display) |
Read our DCI-P3 vs sRGB comparison for the full breakdown.
sRGB emulation mode
Wide-gamut monitors (those covering 95%+ DCI-P3 or Adobe RGB) will look oversaturated when displaying sRGB content without proper color management.
A good monitor includes an sRGB emulation mode that clamps the gamut to sRGB primaries. When enabled, sRGB content renders at intended saturation, even on a wide-gamut panel.
Look for "sRGB", "sRGB clamp", or "sRGB emulation" in your monitor OSD. On macOS and modern Windows, the OS can do this at the color-management layer automatically.
How to check sRGB coverage
"Coverage" means the percentage of the target gamut your monitor can display. "Volume" is a less useful metric that can exceed 100% without covering the full gamut.
Bottom line
sRGB is the baseline color standard for web and SDR content. Any modern monitor should cover 100% sRGB. Wide-gamut monitors add DCI-P3 or Adobe RGB on top, but should still include an sRGB mode for accurate mixed-content work.