Saddle Brown (#8B4513)

/* Background */
.element {
    background-color: #8B4513;
}

/* Text */
.element {
    color: #8B4513;
}

/* Border */
.element {
    border: 1px solid #8B4513;
}

/* Linear gradient to complementary */
.element {
    background: linear-gradient(
        to right,
        #8B4513,
        #279CEF
    );
}

/* Radial gradient */
.element {
    background: radial-gradient(
        circle,
        #8B4513,
        #279CEF
    );
}

// SCSS variable
$saddle-brown: #8B4513;

// With RGB channels (useful for rgba() usage)
$saddle-brown-r: 139;
$saddle-brown-g: 69;
$saddle-brown-b: 19;

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