Brunswick Green (#1B4D3E)

/* Background */
.element {
    background-color: #1B4D3E;
}

/* Text */
.element {
    color: #1B4D3E;
}

/* Border */
.element {
    border: 1px solid #1B4D3E;
}

/* Linear gradient to complementary */
.element {
    background: linear-gradient(
        to right,
        #1B4D3E,
        #7F1B39
    );
}

/* Radial gradient */
.element {
    background: radial-gradient(
        circle,
        #1B4D3E,
        #7F1B39
    );
}

// SCSS variable
$brunswick-green: #1B4D3E;

// With RGB channels (useful for rgba() usage)
$brunswick-green-r: 27;
$brunswick-green-g: 77;
$brunswick-green-b: 62;

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