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BASH - Colors - 3 and 4-bit Colors

Color Table

Color	FG	BG
Reset (No Color)	0	0
Black	30	40
Red	31	41
Green	32	42
Yellow	33	43
Blue	34	44
Magenta	35	45
Cyan	36	46
White	37	47
Bright Black (Grey)	90	100
Bright Red	91	101
Bright Green	92	102
Bright Yellow	93	103
Bright Blue	94	1044
Bright Magenta	95	105
Bright Cyan	96	106
Bright White	97	107

Format

No Color	0	0
Black	0;30	Dark Gray	1;30
Red	0;31	Light Red	1;31
Green	0;32	Light Green	1;32
Brown/Orange	0;33	Yellow	1;33
Blue	0;34	Light Blue	1;34
Purple	0;35	Light Purple	1;35
Cyan	0;36	Light Cyan	1;36
Light Gray	0;37	White	1;37

Red Example

echo -e "\033[0;31mThis is in RED"

NOTE: This is made up of:

\033 - Represents the ESC key.
[0; - Normal color.
[31m] - Red; from color table.

Bright Red Example

echo -e "\033[1;31mThis is in BRIGHT RED"

NOTE: This is made up of:

\033 - Represents the ESC key.
[1; - Bright color.
[31m] - Red; from color table. Notice this is NOT using the bright numbers from the color table.

Bright colors can be used simply by using a 1 after the ESC instead of a 0*. * Some older systems may not support this, so in this case use the alternative number from the color table; <code bash> echo -e “\033[0;91mThis is in BRIGHT RED” </code> * Here the 31m has been changed to 91m**.

Red Blue

echo -e "\033[0;31mThis is in RED\033[0;34mThis is in Blue"

ANSI Rainbow

for (( i = 30; i < 38; i++ )); do echo -e "\033[0;"$i"m Normal: (0;$i); \033[1;"$i"m Light: (1;$i)"; done

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