Closest hex to #ca0423 is #c02

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#c02

ca0423

ca0423

contains c0

0c0 1c0 2c0 3c0 4c0 5c0 6c0 7c0 8c0 9c0 ac0 bc0 c00 c01 c02 c03 c04 c05 c06 c07 c08 c09 c0a c0b c0c c0d c0e c0f cc0 dc0 ec0 fc0

contains 02

002 020 021 022 023 024 025 026 027 028 029 02a 02b 02c 02d 02e 02f 102 202 302 402 502 602 702 802 902 a02 b02 c02 d02 e02 f02

contains c2

0c2 1c2 2c2 3c2 4c2 5c2 6c2 7c2 8c2 9c2 ac2 bc2 c20 c21 c22 c23 c24 c25 c26 c27 c28 c29 c2a c2b c2c c2d c2e c2f cc2 dc2 ec2 fc2