poltmiami.blogg.se - Paciello colour contrast analyser

What we are saying is that color should not be relied upon in and of itself, alone, uh, to convey that information. So we're not saying that color cannot be used. Uh, maybe, uh, it-maybe the bars in a bar graph might get text: some other way of conveying that information, in addition, uh, to the colors. In in a Word document, uh, we can get around that by including other text elements, uh, in items. So we want to be very careful about using color alone, uh, to indicate information. For example, if we have a-a figure, uh, and it's preceded by a text description like "items in red indicate a deficit." If the color red alone is used or being used to indicate a deficit, um, then that may significantly impact, um, our color blind users ability to, uh, interpret that information, certainly impact, uh, blind users, uh, ability to, um, interpret that information, uh, as well. We want to make sure the-that we think about color in a way that compliments the information but does not use color alone to convey that information. So color and, uh, color contrast, uh, are going to be particularly important, uh, considerations, uh, for low vision users and color blind users. When we're talking about, um, the contrast ratio, uh, between text, uh, and background, uh, we're talking about the choice of colors that may impact, uh, other users, for example, color blind users.

Optional: On the tool bar at the top you can also check out the ‘Color Blindness Simulation’ under ‘View’ > ‘Color Blindness Simulation’.Careful use of color contrast is important to all users.

Whether that means a new image that works with your font color or adding a transparent background to the text, if it is an option with your widget of choice. If you are unable to get your color contrast ratio to pass after tweaking your text color (and background color if you choose to), then you will need to change your text color and image combination.

Image and text color combination must pass color contrast ratio.

Note: You can also tweak the background color, but that will require that you also reoptimize your image so that it is darker

If your color contrast ratio fails, you can increase your text color darkness until it passes by selecting the slider icon in the ‘Foreground’ box and selecting the ‘HSL’ tab > ‘Lightness’.

When it comes to color contrast we try to pass level AAA, but if it is too difficult for you to get level AAA with your image and text combination then passing level AA is required.

Note: You can expand each dropdown to read the corresponding guideline

Below the ‘WCAG 2.1 results’ header are three dropdowns telling you if you have passed the required color contrast guideline.You will see your color contrast ratio near the bottom in the ‘WCAG 2.1 results’ section.Focus on areas that may be obviously failing color contrast ratio, for example a light background color on white text color. Note: You will want to select multiple areas of the image to make sure the color contrast ratio passes for those areas.

Next click the dropper tool in the ‘Background colour’ section and get as close to the text as possible.On the CCA tool, click the dropper tool in the ‘Foreground colour’ section and select your text.Note: You do not need to edit the page, it’s probably better to just view the page. Navigate to the page where you need to use the CCA.The CCA will appear and it will sit on top of your web browser and any other application you may have opened.