Mô Phỏng Thị Giác Mù Màu

You can upload PNG, JPG, JPEG, or WebP files up to 2 MB. Large images are resized only for preview processing, with a limit of 1,600 px wide and about 3 million pixels to keep the browser tool responsive.

Protanopia relates to an absent typical red response, deuteranopia to green, and tritanopia to blue, especially affecting blue/yellow pairs. Modes ending in “anomaly” approximate partial forms, while achromatopsia simulates the absence of color.

Intensity controls how much of the transformation is blended into the original image. Use 100% to inspect the full profile and lower values to explore a partial change. The percentage does not represent a medical degree of color blindness.

The area left of the line shows the original image and the area to the right shows the selected profile. Drag the circle, use arrow keys while the control is focused, or double-click to return the divider to the center. You can also open the comparison fullscreen.

Start with protanopia and deuteranopia when reviewing red/green combinations. Then test tritanopia for blue/yellow pairs and achromatopsia to confirm that labels, shapes, and hierarchy still carry the message without hue.

No. Simulation exposes possible color confusion, while contrast checking measures luminance and readability. An element can remain distinguishable in the simulation and still have insufficient contrast, so use both checks.

Yes. All image processing happens locally in your browser. The tool does not send the source file or simulated image to the server.

The download button exports only the current simulated version as a PNG, whether the viewer is normal or fullscreen. The file uses the processed preview resolution, which may be reduced for very large images.

No. The tool transforms colors to support design and accessibility review; it is not a vision test, cannot provide a diagnosis, and does not exactly represent any one person's perception. Consult an eye-care professional for clinical assessment.