Venetian Red (#C80815)

/* Background */
.element {
    background-color: #C80815;
}

/* Text */
.element {
    color: #C80815;
}

/* Border */
.element {
    border: 1px solid #C80815;
}

/* Linear gradient to complementary */
.element {
    background: linear-gradient(
        to right,
        #C80815,
        #08C8BB
    );
}

/* Radial gradient */
.element {
    background: radial-gradient(
        circle,
        #C80815,
        #08C8BB
    );
}

// SCSS variable
$venetian-red: #C80815;

// With RGB channels (useful for rgba() usage)
$venetian-red-r: 200;
$venetian-red-g: 8;
$venetian-red-b: 21;

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