Lavender Indigo (#9457EB)

/* Background */
.element {
    background-color: #9457EB;
}

/* Text */
.element {
    color: #9457EB;
}

/* Border */
.element {
    border: 1px solid #9457EB;
}

/* Linear gradient to complementary */
.element {
    background: linear-gradient(
        to right,
        #9457EB,
        #EDF8DE
    );
}

/* Radial gradient */
.element {
    background: radial-gradient(
        circle,
        #9457EB,
        #EDF8DE
    );
}

// SCSS variable
$lavender-indigo: #9457EB;

// With RGB channels (useful for rgba() usage)
$lavender-indigo-r: 148;
$lavender-indigo-g: 87;
$lavender-indigo-b: 235;

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