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How Can I Create CSS Color Shades Using Variables and Relative Color Syntax?
How Can I Create CSS Color Shades Using Variables and Relative Color Syntax?
Dec 12, 2024 am 11:14 AM
Creating CSS Color Shades with Variables
Achieving the functionality of Sass's darken() function within CSS variables is possible through the new relative color syntax.
Define the primary color variable (--color-primary) using any desired format. For each shade, use the hsl() function and calc() to adjust the lightness (l) component of the primary color. For instance, to create a 5% darker shade:
--color-primary-darker: hsl(from var(--color-primary) h s calc(l - 5));
Similarly, create a 10% darker shade:
--color-primary-darkest: hsl(from var(--color-primary) h s calc(l - 10));
Assign --color-primary to the element's background. Then, apply --color-primary-darker and --color-primary-darkest to the hover, focus, and active states.
.button {
background: var(--color-primary);
}
.button:hover,
.button:focus {
background: var(--color-primary-darker);
}
.button:active {
background: var(--color-primary-darkest);
}
This approach provides flexibility in defining color shades and simplifies the process of creating consistent color schemes within a CSS variables system.
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