superdesk/superdesk-client-core

.color-selector__list {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(6.8rem, 6.8rem));
    grid-gap: 0.9rem;
}

.color-selector__swatch {
    height: 6.8rem;
    width: 6.8rem;
    padding: 0.2rem;
    border-radius: var(--b-radius--full);
    border: 2px solid transparent;
}

.color-selector__swatch--selected {
    border-color: var(--sd-colour-interactive);
}

.color-selector__swatch-content {
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    height: 6rem;
    width: 6rem;
    font-size: 2rem;
    line-height: 6rem;
    text-transform: uppercase;
    border-radius: var(--b-radius--full);
    background-color: var(--sd-editor-colour__main-bg);
    color: var(--sd-editor-colour__txt);
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.16), 0 0 1px rgba(0, 0, 0, 0.1);
    cursor: pointer;
}