Black Leather Jacket (#253529)

/* Background */
.element {
    background-color: #253529;
}

/* Text */
.element {
    color: #253529;
}

/* Border */
.element {
    border: 1px solid #253529;
}

/* Linear gradient to complementary */
.element {
    background: linear-gradient(
        to right,
        #253529,
        #45253D
    );
}

/* Radial gradient */
.element {
    background: radial-gradient(
        circle,
        #253529,
        #45253D
    );
}

// SCSS variable
$black-leather-jacket: #253529;

// With RGB channels (useful for rgba() usage)
$black-leather-jacket-r: 37;
$black-leather-jacket-g: 53;
$black-leather-jacket-b: 41;

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