All Systems Red Monochromatic Color Scheme

Color names and codes

Name	HEX	RGB	HSL	CMYK	OKLCH
Dwarf Fortress	`#1D0200`	29, 2, 0	4°, 100%, 6%	0, 93, 100, 89	15.1% 0.054 34
Red Blood	`#660000`	102, 0, 0	0°, 100%, 20%	0, 100, 100, 60	32.0% 0.131 29
All Systems Red	`#B30103`	179, 1, 3	359°, 99%, 35%	0, 99, 98, 30	48.2% 0.197 29
Left on Red	`#FF0303`	255, 3, 3	0°, 100%, 51%	0, 99, 99, 0	62.9% 0.257 29
Fluorescent Red	`#FF5555`	255, 85, 85	0°, 100%, 67%	0, 67, 67, 0	68.2% 0.206 24

Which pairs work for text

Text on background	Contrast	WCAG
Aa #1D0200 on #FF5555	6.30:1	AA
Aa #1D0200 on #FF0303	4.96:1	AA
Aa #660000 on #FF5555	4.27:1	AA large
Aa #660000 on #FF0303	3.37:1	AA large
Aa #1D0200 on #B30103	2.75:1	—
Aa #B30103 on #FF5555	2.29:1	—

CSS variables

:root {
  --color-1: #1d0200; /* Dwarf Fortress */
  --color-2: #660000; /* Red Blood */
  --color-3: #b30103; /* All Systems Red */
  --color-4: #ff0303; /* Left on Red */
  --color-5: #ff5555; /* Fluorescent Red */
}

Other schemes from All Systems Red

#B30103
#FF1414
#01B1AF
#006767
#16F8FF
All Systems Red Complementary Color Scheme
#B300B3
#AA0055
#B30103
#BB5500
#A8B504
All Systems Red Analogous Color Scheme
#B30103
#00B800
#0000BB
#FF1C1C
#006800
All Systems Red Triadic Color Scheme
#B30103
#00BB55
#095BAF
#660000
#00FF7C
All Systems Red Split-complementary Color Scheme
#B30103
#5CB200
#01B1AF
#5500BB
#FF1C1C
All Systems Red Tetradic Color Scheme

More dark red monochromatic color schemes

Questions

What colors go with All Systems Red?

In a monochromatic scheme: Dwarf Fortress (#1D0200), Red Blood (#660000), Left on Red (#FF0303), Fluorescent Red (#FF5555).

What is the hex code of All Systems Red?

#B30103.