Closest hex to #80b403 is #8b0

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#
#8b0

80b403

80b403

contains 8b

08b 18b 28b 38b 48b 58b 68b 78b 88b 8b0 8b1 8b2 8b3 8b4 8b5 8b6 8b7 8b8 8b9 8ba 8bb 8bc 8bd 8be 8bf 98b a8b b8b c8b d8b e8b f8b

contains b0

0b0 1b0 2b0 3b0 4b0 5b0 6b0 7b0 8b0 9b0 ab0 b00 b01 b02 b03 b04 b05 b06 b07 b08 b09 b0a b0b b0c b0d b0e b0f bb0 cb0 db0 eb0 fb0

contains 80

080 180 280 380 480 580 680 780 800 801 802 803 804 805 806 807 808 809 80a 80b 80c 80d 80e 80f 880 980 a80 b80 c80 d80 e80 f80