Deep Green (#056608)

/* Background */
.element {
    background-color: #056608;
}

/* Text */
.element {
    color: #056608;
}

/* Border */
.element {
    border: 1px solid #056608;
}

/* Linear gradient to complementary */
.element {
    background: linear-gradient(
        to right,
        #056608,
        #C705C1
    );
}

/* Radial gradient */
.element {
    background: radial-gradient(
        circle,
        #056608,
        #C705C1
    );
}

// SCSS variable
$deep-green: #056608;

// With RGB channels (useful for rgba() usage)
$deep-green-r: 5;
$deep-green-g: 102;
$deep-green-b: 8;

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