#A01B37#A01B37

#A01B37 is a mid, vivid red. Relative luminance 0.085; OKLCH L 46.1% C 0.166 H 16.1°. Best body text is #FFFFFF at 7.76:1 contrast (WCAG AA passes).

Color values

HEX	#A01B37
RGB	rgb(160, 27, 55)
HSL	hsl(347, 71%, 37%)
HSV	hsv(347, 83%, 63%)
CMYK	cmyk(0%, 83.1%, 65.6%, 37.3%)
CIE-LAB	lab(35.07, 53.49, 19.22)
CIE-LCH	lch(35.07, 56.84, 19.76°)
OKLab	oklab(46.13% 0.1598 0.0461)
OKLCH	oklch(46.13% 0.166 16.1)
XYZ	xyz(15.5804, 8.5357, 4.4409)
Luminance	0.0853 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#A01B37 #1BA084

analogous

#A01B7A #A01B37 #A0411B

triadic

#A01B37 #37A01B #1B37A0

tetradic

#A01B37 #7AA01B #1BA084 #411BA0

square

#A01B37 #7AA01B #1BA084 #411BA0

split-complementary

#A01B37 #1BA041 #1B7AA0

monochromatic

#370913 #6C1225 #A01B37 #D42449 #E25371

Accessibility & contrast

On white

7.76

#A01B37 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.71

#A01B37 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #A01B37

7.76:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##A01B37	#FFFFFF	#000000	##FFFFFF
##A01B37	1.00	7.76	2.71	7.76
#FFFFFF	7.76	1.00	21.00	1.00
#000000	2.71	21.00	1.00	21.00
##FFFFFF	7.76	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#444137

Deuteranopia (green-blind)

#655C33

Tritanopia (blue-blind)

#B00028

Achromatopsia (no color)

#525252

Design tokens & code

CSS

--color: #a01b37;
/* rgb */ color: rgb(160, 27, 55);
/* oklch */ color: oklch(46.1% 0.166 16.1);

Tailwind

colors: {
  custom: {
    50: '#c4676d',
    500: '#a01b37',
    950: '#000000',
  },
}

SCSS

$custom: #a01b37;
$custom-light: #c4676d;
$custom-dark: #000000;

JSON

{
  "hex": "#a01b37",
  "rgb": {
    "r": 160,
    "g": 27,
    "b": 55
  },
  "hsl": {
    "h": 347.368,
    "s": 71.123,
    "l": 36.667
  },
  "oklch": {
    "l": 0.4613,
    "c": 0.16627,
    "h": 16.1
  },
  "luminance": 0.08533
}

Semantic roles & 50–950 ramp

primary

#A01B37

secondary

#52C5AD

accent

#EEC83A

background

#FDF6F6

surface

#FAEBEB

border

#D3C6C6

text

#140707

muted

#837A7A

Preview Lab

Preview with #A01B37

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

Preview Lab → · Contrast checker → · Palette generator →