RAN tribals were never bog standard RN grey during the war. After the war they were standard RN light grey. In 1943 warramunga was assigned to task force 74 (USN) operating out of Queensland, along with HMAS Hobart both were painted in the USN overall blue. Blue on vertical and horizontal surfaces. While assigned to the task force with which she remained until the end of the war her pennant number was D10 (destroyer 10) hobart for example was C3 or (cruiser 3) that's what's in the photo you have above from the australian war memorial. HMAS Bataan another australian tribal also had a USN designation D9 (Bataan never saw action during the war as when she was attached to task force 74 then in the Philippines, the war ended) while Arunta was D5 when attached to task force 74. Arunta for example during attachement to the US 7th fleet (most of her wartime career was spent attached to the 7th fleet) was D30 and later when attached to the british pacific fleet (BPF) she was I30. I44 was Warramunga's early war pennant number.
1/72 models of HMAS Hobart and HMAS Arunta sporting the USN blue with small USN style pennant numbers.



The dazzle pattern as hmas Arunta here in 1942

was applied during the early stages of the war during trials and just after being delivered.
Arunta was in two tone RN blue/grey while attached to the commonwealth occupational force after the war.

So depends which ship and when you want to build her. Also I'm early 1945 all orleikon's were replaced with single bofors. If you want her dazzle colours, a clubmate is building arunta as built in dazzle and can get the colours of him. Hope this helps.
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AT
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