Blue Violet (#8A2BE2)

/* Background */
.element {
    background-color: #8A2BE2;
}

/* Text */
.element {
    color: #8A2BE2;
}

/* Border */
.element {
    border: 1px solid #8A2BE2;
}

/* Linear gradient to complementary */
.element {
    background: linear-gradient(
        to right,
        #8A2BE2,
        #E1F9CB
    );
}

/* Radial gradient */
.element {
    background: radial-gradient(
        circle,
        #8A2BE2,
        #E1F9CB
    );
}

// SCSS variable
$blue-violet: #8A2BE2;

// With RGB channels (useful for rgba() usage)
$blue-violet-r: 138;
$blue-violet-g: 43;
$blue-violet-b: 226;

// Usage
.element {
    background-color: $blue-violet;
    color: rgba($blue-violet-r, $blue-violet-g, $blue-violet-b, 0.8);
}