#A01B2B#A01B2B

#A01B2B is a mid, vivid red. Relative luminance 0.084; OKLCH L 45.9% C 0.167 H 21.4°. Best body text is #FFFFFF at 7.82:1 contrast (WCAG AA passes).

Color values

HEX	#A01B2B
RGB	rgb(160, 27, 43)
HSL	hsl(353, 71%, 37%)
HSV	hsv(353, 83%, 63%)
CMYK	cmyk(0%, 83.1%, 73.1%, 37.3%)
CIE-LAB	lab(34.87, 52.88, 26.60)
CIE-LCH	lch(34.87, 59.19, 26.70°)
OKLab	oklab(45.92% 0.1551 0.0608)
OKLCH	oklch(45.92% 0.167 21.4)
XYZ	xyz(15.3270, 8.4343, 3.1060)
Luminance	0.0843 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#A01B2B #1BA090

analogous

#A01B6E #A01B2B #A04E1B

triadic

#A01B2B #2BA01B #1B2BA0

tetradic

#A01B2B #6EA01B #1BA090 #4E1BA0

square

#A01B2B #6EA01B #1BA090 #4E1BA0

split-complementary

#A01B2B #1BA04E #1B6EA0

monochromatic

#37090F #6C121D #A01B2B #D42439 #E25365

Accessibility & contrast

On white

7.82

#A01B2B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.69

#A01B2B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #A01B2B

7.82:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##A01B2B	#FFFFFF	#000000	##FFFFFF
##A01B2B	1.00	7.82	2.69	7.82
#FFFFFF	7.82	1.00	21.00	1.00
#000000	2.69	21.00	1.00	21.00
##FFFFFF	7.82	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#45402A

Deuteranopia (green-blind)

#665C26

Tritanopia (blue-blind)

#B00023

Achromatopsia (no color)

#525252

Design tokens & code

CSS

--color: #a01b2b;
/* rgb */ color: rgb(160, 27, 43);
/* oklch */ color: oklch(45.9% 0.167 21.4);

Tailwind

colors: {
  custom: {
    50: '#c56764',
    500: '#a01b2b',
    950: '#000000',
  },
}

SCSS

$custom: #a01b2b;
$custom-light: #c56764;
$custom-dark: #000000;

JSON

{
  "hex": "#a01b2b",
  "rgb": {
    "r": 160,
    "g": 27,
    "b": 43
  },
  "hsl": {
    "h": 352.782,
    "s": 71.123,
    "l": 36.667
  },
  "oklch": {
    "l": 0.45915,
    "c": 0.16654,
    "h": 21.4
  },
  "luminance": 0.08432
}

Semantic roles & 50–950 ramp

primary

#A01B2B

secondary

#52C5B7

accent

#EED83A

background

#FDF6F5

surface

#FAEBEA

border

#D3C6C6

text

#140705

muted

#837A79

Preview Lab

Preview with #A01B2B

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

Preview Lab → · Contrast checker → · Palette generator →