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Web best practices: dark themes: Mention OLEDs

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OLED displays use less energy when displaying darker colors.
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Rohan Kumar 2021-07-02 20:49:44 -07:00
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content/posts/website-best-practices.gmi
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@ -110,7 +110,7 @@ When setting colors, especially with a dark background, I recommend checking you
=> https://www.myndex.com/APCA/simple Online ACPA Contrast Calculator
Blue and purple links on a black background have much worse perceptual contrast than yellow or green links.
Blue and purple links on a black background have much worse perceptual contrast than yellow or green links. Also, remember that the darker the background, the less battery your website will require devices with OLED screens.
CSS filters such as "invert" are quite expensive to run, so they should be used sparingly. Simply inverting your page's colors to provide a dark theme could slow it down or cause a user's fans to spin.

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content/posts/website-best-practices.md
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@ -105,7 +105,7 @@ Some users' browsers set default page colors that aren't black-on-white. For ins
If you do explicitly set colors, please also include a dark theme using a media query: `@media (prefers-color-scheme: dark)`. For more info, read the relevant docs [on MDN](https://developer.mozilla.org/en-US/docs/Web/CSS/@media/prefers-color-scheme)
When setting colors, especially with a dark background, I recommend checking your page's contrast using <abbr title="Advanced Perceptual Contrast Algorithm">APCA</abbr> values. You can do so in an [online checker](https://uglyduck.ca/lazy-dev-dark-mode/) or Chromium's developer tools (you might have to enable them in a menu for experimental preferences). Blue and purple links on a black background have much worse perceptual contrast than yellow or green links.
When setting colors, especially with a dark background, I recommend checking your page's contrast using <abbr title="Advanced Perceptual Contrast Algorithm">APCA</abbr> values. You can do so in an [online checker](https://uglyduck.ca/lazy-dev-dark-mode/) or Chromium's developer tools (you might have to enable them in a menu for experimental preferences). Blue and purple links on a black background have much worse perceptual contrast than yellow or green links. Also, remember that the darker the background, the less battery your website will require devices with OLED screens.
CSS filters such as `invert` are quite expensive to run, so they should be used sparingly. Simply inverting your page's colors to provide a dark theme could slow it down or cause a user's fans to spin.