Dark Sea Green (#8FBC8F)

/* Background */
.element {
    background-color: #8FBC8F;
}

/* Text */
.element {
    color: #8FBC8F;
}

/* Border */
.element {
    border: 1px solid #8FBC8F;
}

/* Linear gradient to complementary */
.element {
    background: linear-gradient(
        to right,
        #8FBC8F,
        #CCACCC
    );
}

/* Radial gradient */
.element {
    background: radial-gradient(
        circle,
        #8FBC8F,
        #CCACCC
    );
}

// SCSS variable
$dark-sea-green: #8FBC8F;

// With RGB channels (useful for rgba() usage)
$dark-sea-green-r: 143;
$dark-sea-green-g: 188;
$dark-sea-green-b: 143;

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