Closest hex to #ff7777 is #f77

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#f77

ff7777

ff7777

contains f7

0f7 1f7 2f7 3f7 4f7 5f7 6f7 7f7 8f7 9f7 af7 bf7 cf7 df7 ef7 f70 f71 f72 f73 f74 f75 f76 f77 f78 f79 f7a f7b f7c f7d f7e f7f ff7

contains 77

077 177 277 377 477 577 677 770 771 772 773 774 775 776 777 778 779 77a 77b 77c 77d 77e 77f 877 977 a77 b77 c77 d77 e77 f77

contains f7

0f7 1f7 2f7 3f7 4f7 5f7 6f7 7f7 8f7 9f7 af7 bf7 cf7 df7 ef7 f70 f71 f72 f73 f74 f75 f76 f77 f78 f79 f7a f7b f7c f7d f7e f7f ff7