Colored Leather Armor led to crash

I was giving myself yellow colored leather armor that was also named through a command block and it crashed my game and I cannot get back on my world.
Is there a way to fix this?

Crah Report:

Minecraft Crash Report ----
// Ooh. Shiny.

Time: 8/14/14 4:24 PM
Description: Reading NBT data

java.lang.ClassCastException: dq cannot be cast to dh
at dh.m(SourceFile:211)
at abb.b(SourceFile:168)
at abb.a(SourceFile:135)
at bny.a(SourceFile:356)
at bny.b(SourceFile:400)
at bbv.a(SourceFile:744)
at bbv.a(SourceFile:123)
at blt.b(SourceFile:834)
at bao.ak(SourceFile:801)
at bao.f(SourceFile:728)
at net.minecraft.client.main.Main.main(SourceFile:148)

A detailed walkthrough of the error, its code path and all known details is as follows:
---------------------------------------------------------------------------------------

– Head –
Stacktrace:
at dh.m(SourceFile:211)

– Corrupt NBT tag –
Details:
Tag type found: LIST
Tag type expected: COMPOUND
Tag name: display
Stacktrace:
at dh.m(SourceFile:211)
at abb.b(SourceFile:168)
at abb.a(SourceFile:135)
at bny.a(SourceFile:356)

– Item being rendered –
Details:
Item Type: abb@62fa5ff3
Item Aux: 0
Item NBT: {display:[0:,1:{Name:"Fireman Helmet",},],}
Item Foil: false
Stacktrace:
at bny.b(SourceFile:400)
at bbv.a(SourceFile:744)
at bbv.a(SourceFile:123)

– Affected level –
Details:
Level name: MpServer
All players: 1 total; [bjk['goldenelk'/333, l='MpServer', x=-175.45, y=65.62, z=419.57]]
Chunk stats: MultiplayerChunkCache: 0, 0
Level seed: 0
Level generator: ID 00 - default, ver 1. Features enabled: false
Level generator options:
Level spawn location: World: (-32,64,256), Chunk: (at 0,4,0 in -2,16; contains blocks -32,0,256 to -17,255,271), Region: (-1,0; contains chunks -32,0 to -1,31, blocks -512,0,0 to -1,255,511)
Level time: 1608516 game time, 340457 day time
Level dimension: 0
Level storage version: 0x00000 - Unknown?
Level weather: Rain time: 0 (now: false), thunder time: 0 (now: false)
Level game mode: Game mode: creative (ID 1). Hardcore: false. Cheats: false
Forced entities: 1 total; [bjk['goldenelk'/333, l='MpServer', x=-175.45, y=65.62, z=419.57]]
Retry entities: 0 total; []
Server brand: vanilla
Server type: Integrated singleplayer server
Stacktrace:
at bjf.a(SourceFile:289)
at bao.b(SourceFile:1972)
at bao.f(SourceFile:737)
at net.minecraft.client.main.Main.main(SourceFile:148)

– System Details –
Details:
Minecraft Version: 1.7.10
Operating System: Windows 7 (amd64) version 6.1
Java Version: 1.6.0_14, Sun Microsystems Inc.
Java VM Version: Java HotSpot(TM) 64-Bit Server VM (mixed mode), Sun Microsystems Inc.
Memory: 327261400 bytes (312 MB) / 523501568 bytes (499 MB) up to 1060372480 bytes (1011 MB)
JVM Flags: 6 total; -XX:HeapDumpPath=MojangTricksIntelDriversForPerformance_javaw.exe_minecraft.exe.heapdump -Xmx1G -XX:+UseConcMarkSweepGC -XX:+CMSIncrementalMode -XX:-UseAdaptiveSizePolicy -Xmn128M
AABB Pool Size: 0 (0 bytes; 0 MB) allocated, 0 (0 bytes; 0 MB) used
IntCache: cache: 13, tcache: 0, allocated: 13, tallocated: 95
Launched Version: 1.7.10
LWJGL: 2.9.1
OpenGL: Mobile Intel(R) 4 Series Express Chipset Family GL version 2.1.0 - Build 8.15.10.1808, Intel
GL Caps: Using GL 1.3 multitexturing.
Using framebuffer objects because EXT_framebuffer_object is supported.
Anisotropic filtering is supported and maximum anisotropy is 2.
Shaders are available because OpenGL 2.1 is supported.

Is Modded: Probably not. Jar signature remains and client brand is untouched.
Type: Client (map_client.txt)
Resource Packs: []
Current Language: English (US)
Profiler Position: N/A (disabled)
Vec3 Pool Size: 0 (0 bytes; 0 MB) allocated, 0 (0 bytes; 0 MB) used
Anisotropic Filtering: Off (1)