A polycarbonate blend composition comprising: a. optionally a polycarbonate polymer; b. a first polysiloxane-polycarbonate copolymer comprising: i. polydiorganosiloxane blocks comprising repeating structural units of formula: wherein the polydiorganosiloxane block length is from 30 to 60; and ii. polycarbonate blocks comprising polycarbonate units of formula: wherein at least 60 percent of the total number of R 1 groups comprise aromatic moieties and the balance thereof comprise aliphatic, alicyclic, or aromatic moieties; wherein the first polysiloxane-polycarbonate copolymer comprises a diorganosiloxane content of from 4 to 8 wt % diorganosiloxane based on the total weight of the first polysiloxane-polycarbonate copolymer; c. a second polysiloxane-polycarbonate copolymer comprising: i. polydiorganosiloxane blocks comprising repeating structural units of formula: wherein the polydiorganosiloxane block length is from 30 to 100; and ii. polycarbonate blocks comprising polycarbonate units of formula: wherein at least 60 percent of the total number of R 1 groups comprise aromatic moieties and the balance thereof comprise aliphatic, alicyclic, or aromatic moieties; wherein the second polysiloxane-polycarbonate copolymer comprises a diorganosiloxane content of from 15 to 30 wt % diorganosiloxane based on the total weight of the second polysiloxane-polycarbonate copolymer; and d. a colorant composition; wherein the blend composition has an average melt flow rate of 7 or greater measured in accordance with ASTM 1238 at 300 °C/1.2 kg; and wherein a molded part having a thickness of 3.2 mm formed from the blend composition has a black color characterized by an average L* value of 28 or less as measured by the CIE Lab method, 10 degree observer, D65 illuminant, specular component included, measured in reflectance mode; and wherein a molded part having a thickness of 3.2 mm formed from the blend composition has an average notched Izod impact energy at -30 °C of 600 J/m or greater according to ASTM D256-2010; and wherein a molded part having a thickness of 3.2 mm formed from the blend composition has a % ductility at -30 °C of 80%; and wherein R is the same or different, and is a C 1-13 monovalent organic group; R 2 is independently a divalent C 1 -C 30 organic group; M is independently a halogen, cyano, nitro, C 1 -C 8 alkylthio, C 1 -C 8 alkyl, C 1 -C 8 alkoxy, C 2 -C 8 alkenyl, C 2 -C 8 alkenyloxy group, C 3 -C 8 cycloalkyl, C 3 -C 8 cycloalkoxy, C 6 -C 10 aryl, C 6 -C 10 aryloxy, C 7 -C 12 aralkyl, C 7 - C 12 aralkoxy, C 7 - C 12 alkylaryl, or C 7 - C 12 alkylaryloxy, wherein each n is independently 0, 1, 2, 3, or 4. a. optionally a polycarbonate polymer; b. a first polysiloxane-polycarbonate copolymer comprising: i. polydiorganosiloxane blocks comprising repeating structural units of formula: wherein the polydiorganosiloxane block length is from 30 to 60; and ii. polycarbonate blocks comprising polycarbonate units of formula: wherein at least 60 percent of the total number of R 1 groups comprise aromatic moieties and the balance thereof comprise aliphatic, alicyclic, or aromatic moieties; wherein the first polysiloxane-polycarbonate copolymer comprises a diorganosiloxane content of from 4 to 8 wt % diorganosiloxane based on the total weight of the first polysiloxane-polycarbonate copolymer; i. polydiorganosiloxane blocks comprising repeating structural units of formula: wherein the polydiorganosiloxane block length is from 30 to 60; and ii. polycarbonate blocks comprising polycarbonate units of formula: wherein at least 60 percent of the total number of R 1 groups comprise aromatic moieties and the balance thereof comprise aliphatic, alicyclic, or aromatic moieties; c. a second polysiloxane-polycarbonate copolymer comprising: i. polydiorganosiloxane blocks comprising repeating structural units of formula: wherein the polydiorganosiloxane block length is from 30 to 100; and ii. polycarbonate blocks comprising polycarbonate units of formula: wherein at least 60 percent of the total number of R 1 groups comprise aromatic moieties and the balance thereof comprise aliphatic, alicyclic, or aromatic moieties; wherein the second polysiloxane-polycarbonate copolymer comprises a diorganosiloxane content of from 15 to 30 wt % diorganosiloxane based on the total weight of the second polysiloxane-polycarbonate copolymer; and i. polydiorganosiloxane blocks comprising repeating structural units of formula: wherein the polydiorganosiloxane block length is from 30 to 100; and ii. polycarbonate blocks comprising polycarbonate units of formula: wherein at least 60 percent of the total number of R 1 groups comprise aromatic moieties and the balance thereof comprise aliphatic, alicyclic, or aromatic moieties; d. a colorant composition;