Antique Bronze (#665D1E)

/* Background */
.element {
    background-color: #665D1E;
}

/* Text */
.element {
    color: #665D1E;
}

/* Border */
.element {
    border: 1px solid #665D1E;
}

/* Linear gradient to complementary */
.element {
    background: linear-gradient(
        to right,
        #665D1E,
        #1E30AE
    );
}

/* Radial gradient */
.element {
    background: radial-gradient(
        circle,
        #665D1E,
        #1E30AE
    );
}

// SCSS variable
$antique-bronze: #665D1E;

// With RGB channels (useful for rgba() usage)
$antique-bronze-r: 102;
$antique-bronze-g: 93;
$antique-bronze-b: 30;

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