Barn Red (#7C0A02)

/* Background */
.element {
    background-color: #7C0A02;
}

/* Text */
.element {
    color: #7C0A02;
}

/* Border */
.element {
    border: 1px solid #7C0A02;
}

/* Linear gradient to complementary */
.element {
    background: linear-gradient(
        to right,
        #7C0A02,
        #02E6F6
    );
}

/* Radial gradient */
.element {
    background: radial-gradient(
        circle,
        #7C0A02,
        #02E6F6
    );
}

// SCSS variable
$barn-red: #7C0A02;

// With RGB channels (useful for rgba() usage)
$barn-red-r: 124;
$barn-red-g: 10;
$barn-red-b: 2;

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