Han Blue (#446CCF)

/* Background */
.element {
    background-color: #446CCF;
}

/* Text */
.element {
    color: #446CCF;
}

/* Border */
.element {
    border: 1px solid #446CCF;
}

/* Linear gradient to complementary */
.element {
    background: linear-gradient(
        to right,
        #446CCF,
        #EFDDAF
    );
}

/* Radial gradient */
.element {
    background: radial-gradient(
        circle,
        #446CCF,
        #EFDDAF
    );
}

// SCSS variable
$han-blue: #446CCF;

// With RGB channels (useful for rgba() usage)
$han-blue-r: 68;
$han-blue-g: 108;
$han-blue-b: 207;

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