Dark Theme: 5 UI Design Tips
Briefly

When designing dark mode interfaces, it's crucial to avoid pure black backgrounds, as they are excessively harsh on the eyes, leading to strain during prolonged viewing. Instead, a dark gray like #121212 is recommended, which not only reduces eye strain but also helps convey depth in user interfaces because shadows appear more distinct against gray, enhancing the overall user experience in dark mode.
Legibility of text is paramount in dark mode design; thus, it's vital to choose readable fonts. Ultra-thin fonts should be avoided since they can be particularly challenging to decipher against darker backgrounds. Ensuring that the chosen fonts maintain clarity in both light and dark themes is essential for providing an enjoyable reading experience.
For shadows and elevations, the approach must differ considerably between light and dark modes. Shadows may commonly be used to create depth in light themes, but for dark mode, it's advisable to lower the shadow opacity or opt for lighter shades to reduce stark contrasts. Subtle glows or light borders can better indicate elevation without overwhelming the user.
Color choice is a significant aspect of dark mode design, especially regarding saturation. Saturated colors often fail to meet accessibility standards, requiring a contrast ratio of at least 4.5:1, while also causing optical vibrations against dark backgrounds that can lead to eye strain. Lighter tones are ideal for achieving both aesthetic appeal and visual comfort.
Read at Medium
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