This is a page that aims to document commonly-used map colors for election maps of US elections, so maps have consistent coloring.
Democratic
Hex code
Percentage
#E1EFFF
20–30%
#D3E7FF
30–40%
#B9D7FF
40–50%
#86B6F2
50–60%
#4389E3
60–70%
#1666CB
70–80%
#0645B4
80–90%
#002B84
90-100%
Republican
Hex code
Percentage
#FFDFE1
20–30%
#FFCCD0
30–40%
#F2B3BE
40–50%
#E27F90
50–60%
#CC2F4A
60–70%
#D40000
70–80%
#AA0000
80–90%
#800000
90-100%
Whig
Hex code
Percentage
#FEF4B4
30–40%
#FEE391
40–50%
#FED463
50–60%
#FE9929
60–70%
#EC7014
70–80%
#CC4C02
80–90%
#8C2D04
90-100%
Populist/1924 Progressive
Hex code
Percentage
#D7F4D7
30–40%
#AFE9AF
40–50%
#73D873
50–60%
#42CA42
60–70%
#30A630
70–80%
#217821
80–90%
#165016
90-100%
1912 Progressive
Hex code
Percentage
#E2FFD5
20-30%
#C7FFAF
30–40%
#C6E9AF
40–50%
#AADE87
50–60%
#8DD35F
60–70%
#71C837
70–80%
#66A92D
80–90%
Federalist
Hex code
Percentage
#F9F1D8
30–40%
#F6E8C3
40–50%
#DFC27D
50–60%
#BF812D
60–70%
#8C510A
70–80%
#543005
80–90%
#382005
90-100%
1948 Dixiecrat/1968 American Independent
Hex code
Percentage
#FFCCAA
30–40%
#FFB380
40–50%
#FF9955
50–60%
#FF7F2A
60–70%
#FF6600
70–80%
#D45500
80–90%
#AA4400
90-100%
Unpledged Electors[ a]
Hex code
Percentage
#FFEEAA
30–40%
#FFE680
40–50%
#FFDC43
50–60%
#F4C200
60–70%
#DAAE00
70–80%
#BE9600
80–90%
1992 Ross Perot
Hex code
Percentage
#C5FFC5
30–40%
#A1FFA1
40–50%
#5fd35f
50-60%
#37c837
60-70%
#2ca02c
70-80%
Know Nothing
Hex code
Percentage
#F2DFFC
30–40%
#DCB7EF
40–50%
#C88FE4
50–60%
#B368D9
60–70%
#9D40CC
70–80%
#7C31A2
80–90%
#5C2378
90-100%
Tie
Hex code
Percentage
#D4C4DC
40–50%
^ running in 1944, 1956, 1960, 1964
Democratic
Hex code
Percentage
#EBF2FF
10–20%
#DFEEFF
20–30%
#BDD3FF
30–40%
#A5B0FF
40–50%
#7996E2
50–60%
#6674DE
60–70%
#584CDE
70–80%
#3933E5
80–90%
#0D0596
>90%
Republican
Hex code
Percentage
#FFF0F5
10–20%
#FFE0EA
20–30%
#FFC8CD
30–40%
#FFB2B2
40–50%
#E27F7F
50–60%
#D75D5D
60–70%
#D72F30
70–80%
#C21B18
80–90%
#A80000
>90%
Libertarian
Hex code
Percentage
#FFEEAA
30–40%
#FFDD55
40–50%
#F1C92A
50–60%
#DEB02A
60–70%
#CE9B1E
70–80%
#B98A35
80–90%
#A58100
>90%
Independent
Hex code
Percentage
#FAFAFA
0–10%
#F5F5F5
10–20%
#EDEDED
20–30%
#E6E6E6
30–40%
#D9D9D9
40–50%
#BDBDBD
50–60%
#969696
60–70%
#737373
70–80%
#555555
80–90%
Write-in[ a]
Hex code
Percentage
#E5FFE5
0–10%
#D2F7D2
10–20%
#C0F0C0
20–30%
#AAE5AA
30–40%
#87DE87
40–50%
#5FD35F
50–60%
#37C837
60–70%
#2CA02C
70–80%
#217821
80–90%
#165016
>90%
Prohibition
Hex code
Percentage
#FFDCEC
20–30%
#FFC5DA
30–40%
#FFAACC
40–50%
#FF80B2
50–60%
#FF5599
60–70%
#FF2A7F
70–80%
Conservative[ b]
Hex code
Percentage
#FEEFDF
20–30%
#FEE5D5
30–40%
#FFCCAA
40–50%
#FFB380
50–60%
#FF9955
60–70%
#FF7F2A
70–80%
#FF6600
80–90%
#D45500
>90%
Farmer-Labor
Hex code
Percentage
#B4FFE5
30–40%
#7EE5C1
40–50%
#47CC9D
50–60%
#2CB283
60–70%
#199268
70–80%
#0A6343
80–90%
#07452F
>90%
Vermont Progressive
Hex code
Percentage
#E3A6A5
20–30%
#D78281
30–40%
#CC5E5D
40–50%
#C64C4B
50–60%
#9E3D3C
60–70%
#772E2D
70–80%
#4F1E1E
80–90%
#280F0F
>90%
Socialist
Hex code
Percentage
#FFD3C3
0–10%
#FFAC8E
10–20%
#FF8E65
20–30%
#FF7644
30–40%
#F8581E
40–50%
#CD3700
50–60%
#973714
60–70%
#622E1B
70–80%
Democratic (alternative)
Hex code
Percentage
#E3F7F7
10–20%
#D0F9F9
20–30%
#ACF2F2
30–40%
#7DDDDD
40–50%
#51C2C2
50–60%
#2AACAC
60–70%
#009696
70–80%
#008080
80–90%
#006666
>90%
Republican (alternative)[ c]
Hex code
Percentage
#FFEFDF
10–20%
#FFDAC1
20–30%
#FFCCA9
30–40%
#FFB580
40–50%
#FF9A50
50–60%
#EE8E50
60–70%
#D69850
70–80%
#B98A35
80–90%
#9D7700
>90%
Nonpartisan League
Hex code
Percentage
#F9F1DB
30–40%
#F6E8C3
40–50%
#DFC27D
50–60%
#BF812D
60–70%
#8C510A
70–80%
#543005
80–90%
Reform
Hex code
Percentage
#f2dffc
30–40%
#dcb7ef
40–50%
#c88fe4
50–60%
#b368d9
60–70%
#9d40cc
70–80%
#7c31a2
80–90%
#5c2378
>90%
A Connecticut Party
Hex code
Percentage
#FFD670
30–40%
#FFC14C
40–50%
#E3A82D
50–60%
#D99421
60–70%
Liberal Republican
Hex code
Percentage
#E7C6E0
40–50%
#CE89C0
50–60%
#B75CA4
60–70%
#8F257D
70-80%
#733066
80–90%
#481E40
>90%
Constitution
Hex code
Percentage
#E6CDFF
30–40%
#CCAAFF
40–50%
#B380FF
50–60%
#9955FF
60–70%
#7A44CC
70–80%
#5C3399
80–90%
#3D2266
>90%
Tie
Hex code
Percentage
#EFE7F5
20-30%
#DECDE6
30-40%
#D2B1D9
40-50%
#AE8BB1
50%
No data/no votes[ d]
Hex code
Percentage
#808080
No data/No votes
Democratic
Hex code
Status
#92C5DE
Hold
#0671B0
Gain
Republican
Hex code
Status
#F48882
Hold
#CA0120
Gain
Independent
Hex code
Status
#999999
Hold
#666666
Gain
Whig
Hex code
Status
#fdb863
Hold
#e08214
Gain
Progressive
Hex code
Status
#5FD170
Hold
#288B37
Gain
Conservative
Hex code
Status
Unused
#E66101
Gain
Connecticut for Lieberman
Hex code
Status
Unused
#FFF600
Gain
Covenant
Hex code
Status
#42FF42
Hold
#00C000
Gain
No election
Hex code
Status
#d3d3d3
No election
#D0D0D0
No election
Bipartisan Coalition
Hex code
Status
#A12EF6
Hold
#6004A4
Gain
Farmer-Labor
Hex code
Status
#B3DE8A
Hold
#40A839
Gain
Libertarian
Hex code
Status
Unused
#F1C92A
Gain
Reform
Hex code
Status
Unused
#F1C92A
Gain
For maps of future elections, "hold" is used for "incumbent intent is known and is eligible, or incumbent is running for re-election", whereas "gain" is used for "incumbent is retiring/term-limited". Following this, there is an additional color used, which is also used when an election has taken place but not been called yet.
Hex code
Status
#808080
Unknown incumbent/result
These colors were specially selected to cause no difficulty for most colorblind readers.[ 1]
Perceptually uniform, colorblind safe palette
Hex code
Result
Usual percentages
#2B2457
Very extreme support (use sparingly)
90%–100%
#28497C
Extreme support
80%–90%
#47729E
Strong support
70%–80%
#7D9CBB
Medium support
60%–70%
#B6C8D9
Weak support
50%–60%
#EBEEED
Exact tie (use sparingly)
50%
#DEDEBD
Weak opposition
50%–60%
#BCBC83
Medium opposition
60%–70%
#8B8B54
Strong opposition
70%–80%
#5D5D2D
Extreme opposition
80%–90%
#32320C
Very extreme opposition (use sparingly)
90%–100%
Never use both "very extreme" colors on the same county map, as they are nearly indistinguishable. They should only be used to indicate areas of nearly-unanimous support for landslide results. Consider using them for precinct maps, if every "very extreme" precinct's result can be easily inferred from the less extreme precincts surrounding it. (Remember most readers will be less familiar with the area's political geography than you.)
Red/green color schemes are strongly discouraged because about 8% of white men have difficulty distinguishing red and green .