Picked up these solids recently. I really like the color especially with a touch of oil. Pulled out all my red chips for a match. Looks closest to the Santa Ysabel 5's
As long as we're comparing apples to apples. Trying to match an oiled chip to an unoiled sample colour will lead to misleading results (especially among blues). Best to identify with unoiled vs. unoiled. Once you know, then oil to your heart's content.