Volvo paint codes can be anywhere in the engine compartment. They are typically on the radiator support, but may also be on the sheet metal on either side of the engine compartment, so finding them can be challenging. Typical color code format: 421. 421 corresponds to Dark Olive Pearl Clearcoat. Same color code, different name across models; for example, 421 could also be called Dark Green Clearcoat or Mystic Green Clearcoat.