#A1231A#A1231A

#A1231A is a mid, vivid red. Relative luminance 0.089; OKLCH L 46.5% C 0.163 H 29.1°. Best body text is #FFFFFF at 7.58:1 contrast (WCAG AA passes).

Color values

HEX	#A1231A
RGB	rgb(161, 35, 26)
HSL	hsl(4, 72%, 37%)
HSV	hsv(4, 84%, 63%)
CMYK	cmyk(0%, 78.3%, 83.9%, 36.9%)
CIE-LAB	lab(35.71, 50.23, 37.54)
CIE-LCH	lch(35.71, 62.70, 36.77°)
OKLab	oklab(46.51% 0.1428 0.0796)
OKLCH	oklch(46.51% 0.163 29.1)
XYZ	xyz(15.4873, 8.8562, 1.8710)
Luminance	0.0885 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#A1231A #1A98A1

analogous

#A11A55 #A1231A #A1671A

triadic

#A1231A #1AA123 #231AA1

tetradic

#A1231A #55A11A #1A98A1 #671AA1

square

#A1231A #55A11A #1A98A1 #671AA1

split-complementary

#A1231A #1AA167 #1A55A1

monochromatic

#380C09 #6C1811 #A1231A #D62E23 #E35C52

Accessibility & contrast

On white

7.58

#A1231A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.77

#A1231A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #A1231A

7.58:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##A1231A	#FFFFFF	#000000	##FFFFFF
##A1231A	1.00	7.58	2.77	7.58
#FFFFFF	7.58	1.00	21.00	1.00
#000000	2.77	21.00	1.00	21.00
##FFFFFF	7.58	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#4B4217

Deuteranopia (green-blind)

#6A5E13

Tritanopia (blue-blind)

#B20023

Achromatopsia (no color)

#545454

Design tokens & code

CSS

--color: #a1231a;
/* rgb */ color: rgb(161, 35, 26);
/* oklch */ color: oklch(46.5% 0.163 29.1);

Tailwind

colors: {
  custom: {
    50: '#c66958',
    500: '#a1231a',
    950: '#000000',
  },
}

SCSS

$custom: #a1231a;
$custom-light: #c66958;
$custom-dark: #000000;

JSON

{
  "hex": "#a1231a",
  "rgb": {
    "r": 161,
    "g": 35,
    "b": 26
  },
  "hsl": {
    "h": 4,
    "s": 72.193,
    "l": 36.667
  },
  "oklch": {
    "l": 0.46508,
    "c": 0.16349,
    "h": 29.1
  },
  "luminance": 0.08854
}

Semantic roles & 50–950 ramp

primary

#A1231A

secondary

#51BEC6

accent

#E3EF39

background

#FDF6F5

surface

#FAECE9

border

#D3C7C5

text

#150703

muted

#837A78

Preview Lab

Preview with #A1231A

Body copy rendered with the generated semantic roles for this colour.

Preview Lab → · Contrast checker → · Palette generator →