Every character on Jiǎoluò Shūwū read as yang in any tone — 2 readings total across the four tones. Pick the tone you mean.
If you have the sound yang but not the character, here are the 2 characters read this way: 阳 (yáng, sun, bright, the yang principle), 样 (yàng, shape, kind, manner, sample). They split across 2 tones, so the tone is what separates them.