Closest hex to #775777 is #757

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#
#757

775777

775777

contains 75

075 175 275 375 475 575 675 750 751 752 753 754 755 756 757 758 759 75a 75b 75c 75d 75e 75f 775 875 975 a75 b75 c75 d75 e75 f75

contains 57

057 157 257 357 457 557 570 571 572 573 574 575 576 577 578 579 57a 57b 57c 57d 57e 57f 657 757 857 957 a57 b57 c57 d57 e57 f57

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