文本 xolor 对比可用性测试?
我知道文本与其背景之间足够的颜色对比度对于可用性很重要,但我如何测试这一点?具体来说,我有一些选项卡,未选择的选项卡的标题显示为灰色,但仍应可读。
目前,我正在开发的网站对我来说看起来不错,但是对于有轻度视力障碍的人来说,是否有经验法则(我假设有更严重视力障碍的人会使用屏幕阅读器等)。
谢谢
I know sufficient color contrast between text and its background is important for usability, but how can I test for this? Specifically I have tabs and the title of tabs that aren't selected are greyed out but should still be readable.
Currently the site im working on looks fine to me but is there a rule of thumb for people with mild vision impairments (im assuming people with more severe vision impairments would use screen readers, etc).
Thanks
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Firefox 的此工具栏将发出警告&当颜色对比度低于特定值时失败 -
辅助功能评估工具栏
This toolbar for firefox will give warning & Fails when the color contrast is under a specific amount -
Accessibility Evaluation Toolbar