Fire Engine Red (#CE2029)

/* Background */
.element {
    background-color: #CE2029;
}

/* Text */
.element {
    color: #CE2029;
}

/* Border */
.element {
    border: 1px solid #CE2029;
}

/* Linear gradient to complementary */
.element {
    background: linear-gradient(
        to right,
        #CE2029,
        #20CEC5
    );
}

/* Radial gradient */
.element {
    background: radial-gradient(
        circle,
        #CE2029,
        #20CEC5
    );
}

// SCSS variable
$fire-engine-red: #CE2029;

// With RGB channels (useful for rgba() usage)
$fire-engine-red-r: 206;
$fire-engine-red-g: 32;
$fire-engine-red-b: 41;

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