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Screen Color Depth Checker - Online 8‑bit vs 16‑bit

Info Utility bits check color depth screen
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Detected Screen Color Depth
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Detecting...

Reading your screen's color depth information...

8-bit10-bit12-bit16-bit
Per Channel
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Total Colors
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Resolution
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HDR
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Gradient Smoothness Comparison

See how color depth affects gradient banding. 8-bit simulation (left) shows visible banding, while higher depth (right) renders smoothly.

Banding8-bit / ch 256 levels per channel
Smooth16-bit / ch 65,536 levels per channel

Stretch your browser window wider to make banding more visible on the 8-bit simulation.

Screen Information
Color Depth--
Pixel Depth--
Screen Width--
Screen Height--
Device Pixel Ratio--
Viewport Width--
Viewport Height--
Color Capabilities
HDR Support--
Color Gamut--
Bits Per Channel--
Total Bits--
Approx. Colors--
Browser--
Platform--
Understanding Color Depth
8-bit (24-bit total)
Standard

16.7 million colors. 256 shades per RGB channel. Common on most consumer displays. May show banding in smooth gradients, especially in dark areas.

10-bit (30-bit total)
HDR Ready

1.07 billion colors. 1024 shades per channel. Found in HDR monitors and professional displays. Dramatically reduces banding. Ideal for HDR video and gaming.

16-bit (48-bit total)
Professional

281 trillion colors. 65,536 shades per channel. Used in professional photography, cinema production, and medical imaging. Beyond human perception limits.

Frequently Asked Questions

Screen color depth (also called bit depth) refers to the number of bits used to represent the color of a single pixel. Higher color depth means more possible colors and smoother gradients. It's typically measured in bits per channel (bpc) or total bits for all RGB channels combined. For example, 8-bit per channel equals 24-bit total (8 × 3 = 24), capable of displaying 16.7 million colors.

8-bit per channel provides 256 shades per RGB channel (16.7M total colors), while 16-bit per channel provides 65,536 shades per channel (281 trillion total colors). The main practical difference is in gradient smoothness: 8-bit displays often show visible "banding" (distinct color stripes) in smooth gradients, especially in dark shadow areas. 16-bit eliminates this issue entirely, making it essential for professional photo/video work.

This tool reads your browser's reported screen.colorDepth value. On Windows, you can also check: right-click Desktop → Display Settings → Advanced Display → Bit Depth. On macOS: System Settings → Displays → Color Profile. Note that your operating system and graphics driver settings ultimately determine the output color depth sent to your monitor.

Color banding occurs when there aren't enough color shades available to create a truly smooth transition. With 8-bit color (256 levels per channel), a wide gradient may only use a fraction of those levels across a large screen area, making individual color steps visible. This is especially noticeable in dark gradients because human vision is more sensitive to changes in dark tones. Upgrading to a 10-bit or higher display significantly reduces banding.

10-bit (or higher) is strongly recommended for HDR content. HDR (High Dynamic Range) expands the range of brightness and color, and 8-bit simply doesn't have enough shades to represent this expanded range smoothly. Most HDR standards (HDR10, Dolby Vision) require at least 10-bit processing. If you watch HDR content on an 8-bit display, you'll likely notice banding and posterization artifacts.

It depends on your hardware. Your monitor, graphics card, and cable (HDMI/DisplayPort) must all support the desired color depth. On Windows, go to your graphics card control panel (NVIDIA Control Panel or AMD Software) and look for "Output Color Depth" settings. On macOS, color depth is managed automatically based on your display's capabilities. Note that many laptops have fixed 8-bit internal panels that cannot be upgraded.

For professional photo editing, a 10-bit display (30-bit total) is highly recommended. It provides smoother gradients, more accurate color representation, and reduces banding when working with RAW files. Many professional monitors from brands like EIZO, BenQ, and ASUS ProArt offer 10-bit panels. Even if you edit 16-bit RAW files, a 10-bit display offers a substantial improvement over standard 8-bit screens.

Higher color depth (10-bit) combined with HDR can dramatically improve gaming visuals by providing richer colors, better shadow detail, and more immersive lighting. Modern games with HDR support benefit greatly from 10-bit displays. However, you need a compatible GPU, monitor, and proper configuration. For competitive gaming where high refresh rates matter more, 8-bit is still perfectly adequate.

FRC (Frame Rate Control) is a technique used by some 8-bit panels to simulate 10-bit color depth. It rapidly alternates between two adjacent colors across frames, creating the illusion of an intermediate shade. This is often marketed as "8-bit + FRC" or "10-bit (8-bit + FRC)." While effective, true native 10-bit panels still offer superior color accuracy and no flickering artifacts. FRC is a cost-effective compromise found in many mid-range monitors.
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