Symptoms
- Blacks look gray instead of deep black
- Whites look slightly dull rather than bright
- Overall image looks lower contrast than expected
- Problem is specific to one connection type, like HDMI
Likely causes
- CommonGraphics driver set to Limited/TV color range instead of Full/PC rangeThis is a very common default mismatch, especially over HDMI connections.
- PossibleMonitor's own picture setting expecting a different range than what's sentSome monitors have their own RGB range setting that needs to match the source.
- PossibleUsing a TV instead of a dedicated monitorTVs sometimes default to settings intended for cable/broadcast content rather than PC signals.
What to do
- Open your graphics driver's control panel (NVIDIA, AMD, or Intel) and look for 'Color Format,' 'Dynamic Range,' or 'RGB range,' and set it to 'Full' or 'PC Standard (Full RGB).'
- If using a TV as a monitor, check its picture settings for an 'HDMI Black Level' or 'RGB Range' option and set it to 'Low' or 'Full' as appropriate to match the source (test both to see which looks correct).
- In the monitor's own on-screen menu, check for a similar color range setting and ensure it matches your graphics card's output.
- Compare a pure black and pure white test image before and after the change to confirm contrast has improved.
- Restart the computer after making the change, since range settings sometimes require a fresh signal handshake.
- If using DisplayPort instead of HDMI, this issue is less common but check the same setting if colors still look off.
Tools and parts
- None
When to call a pro
This is a settings mismatch rather than a hardware fault, and no professional help is needed; if the correct range setting doesn't fix washed-out colors, check the monitor's contrast and gamma settings next.
Safety
Generally low risk
Generally low risk for a careful person. Stop if anything looks different from what this guide describes.