Color scheme E is a tentative color scheme to use for prime harmonics and potentially other intervals on the wiki. It aligns with various strong consensus opinions about the colors associated with primes (most notably, "7 is blue"). It is based on Hojo Minori's color scheme, in that it defines a gradient to be used throughout the octave and pulls colors from that.
The "neutral" color is to be used for background colors of e.g. text boxes, tables, etc.
The hex codes for Color Scheme E for the first 11 primes are the following. Note the extremely similar shades associated with 7, 29, and 31.
Prime
Color
Color (Neutral)
2
EEEEEE
888888
3
EA4335
BB4E45
5
59CD1F
5B963D
7
3C4AD8
4C55AB
11
E0CB1D
A3983F
13
B33FD0
924FA3
17
1BA6EA
3D88AC
19
1CCF9D
3B977D
23
E69138
B98147
29
375ADB
495EAB
31
2B7AE1
4961AB
Color scheme E.a3
This variation of color scheme E intend to give the primes in the upper region of the octave more distinct colors. It is the current color scheme used on the wiki.
Prime
Color
Color (Neutral)
2
EEEEEE
888888
3
BA2C00
C7634F
5
83FE35
8DCF56
7
2D00AE
654FC4
11
EEF400
CEC94F
13
7700A0
9D4FC3
17
58E3FE
59C3CF
19
50FFAC
59CE8F
23
D59100
CA9B4F
29
0007C8
4F5BC7
31
0C7BFE
4F92CF
Color scheme E.b1
Tristan Bay's prime harmonic color scheme E.b1 is similar to that of the original color scheme E. In this scheme, the base colors are all full-saturation except for the first and last ones, and all colors for primes up to 31 were picked manually. It also has a color palette for all 1200 cents in all 3 color modes.
Color Scheme E.b1 cent-value palette
Prime
Color
Dark mode
Base
Light mode
2
888888
EEEEEE
F7F7F7
3
990031
FF0052
FF6697
5
6B9900
B3FF00
D1FF66
7
330099
5500FF
9966FF
11
997500
FFC300
FFDB66
13
660099
AA00FF
CC66FF
17
008699
00E0FF
66ECFF
19
00994D
00FF80
66FFB3
23
993B00
FF6300
FFA166
29
000599
0008FF
666BFF
31
004799
0077FF
66ADFF
Higher primes
444444
777777
AAAAAA
Color schemes E.c
These variations of color scheme E were created by Lériendil in May 2026 to provide reasonably distinctive colors out to the 53-limit. These tables will consider odd primes only; colors for 2 and the higher primes are unchanged from color scheme E.a3.
Color scheme E.c1
Prime
Color
3
E40030
5
B5FE57
7
2C00A4
11
FFCA1E
13
A300BD
17
2BB8FE
19
5BFE7A
23
FB7003
29
0017A4
31
0055BA
37
5BFEC5
41
E8FE4A
43
FEE636
47
FD2900
53
8100B9
Color scheme E.c2
Prime
Color
3
E40009
5
A3FE57
7
3300A4
11
FFCA1E
13
BA00BD
17
2BC1FE
19
5BFE8D
23
FB8003
29
0010A4
31
005EBA
37
5BFED7
41
D5FE4A
43
FEDF36
47
FD4600
53
8700B9
Color scheme E.c3
Prime
Color
3
E40800
5
95FE57
7
4800A0
11
FFDC1E
13
BD00B0
17
3EB7FE
19
5BFE9A
23
FB9403
29
2400B0
31
004EBA
37
5BFEE4
41
C1FE3C
43
FEEF36
47
FD5B00
53
8C00AC
Tuning error color scheme
A color scheme for tuning error in relative cents.
Vector's proposal
0.0
<4
<9
<16
<25
<36
>36
The magenta color is used for the perfectly in-tune interval, usually the equave.
Vector's 2nd proposal
Relative error
0.0
<3
<7
<11
<16
<25
<36
>36
Absolute error
0.0
>300
<300
<150
<75
<38
<18.8
<9.4
<4.7
<2.34
<1.17
<0.59
<0.293
<0.146
<0.073
<0.037
<0.0183
<0.0092
<0.0046
<0.00229
<0.00114
<0.00057
<0.00029
<0.00014
<0.00007
Tristan's proposal
The relative error table colors are based off the ones from Vector's 2nd proposal.
