keeweb/app/styles/base/_colors.scss

$dark-colors: (
    white-color: #d8e5f1,
    black-color: #111,
    red-color: #ed5f5e,
    orange-color: #e8873a,
    yellow-color: #f7c644,
    green-color: #78b756,
    blue-color: #2f7cf7,
    violet-color: #e55d9c
);

$light-colors: (
    white-color: #d8e5f1,
    black-color: #111,
    red-color: #d04745,
    orange-color: #e9873a,
    yellow-color: #f7c84e,
    green-color: #79b656,
    blue-color: #2f7cf7,
    violet-color: #e55d9c
);

body {
    @each $name, $value in $dark-colors {
        --#{$name}: #{$value};
    }
}

@each $name in map-keys($dark-colors) {
    .#{$name} {
        color: var(--#{$name});
    }
}
.muted-color {
    color: var(--muted-color);
}
.action-color {
    color: var(--action-color);
}
.error-color {
    color: var(--error-color);
}