#A01B1A#A01B1A

#A01B1A is a mid, vivid red. Relative luminance 0.083; OKLCH L 45.7% C 0.168 H 27.4°. Best body text is #FFFFFF at 7.88:1 contrast (WCAG AA passes).

Color values

HEX	#A01B1A
RGB	rgb(160, 27, 26)
HSL	hsl(0, 72%, 36%)
HSV	hsv(0, 84%, 63%)
CMYK	cmyk(0%, 83.1%, 83.8%, 37.3%)
CIE-LAB	lab(34.67, 52.26, 36.49)
CIE-LCH	lch(34.67, 63.74, 34.92°)
OKLab	oklab(45.7% 0.1493 0.0773)
OKLCH	oklch(45.7% 0.168 27.4)
XYZ	xyz(15.0775, 8.3345, 1.7919)
Luminance	0.0833 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#A01B1A #1A9FA0

analogous

#A01A5C #A01B1A #A05E1A

triadic

#A01B1A #1AA01B #1B1AA0

tetradic

#A01B1A #5CA01A #1A9FA0 #5E1AA0

square

#A01B1A #5CA01A #1A9FA0 #5E1AA0

split-complementary

#A01B1A #1AA05E #1A5CA0

monochromatic

#370909 #6B1211 #A01B1A #D52423 #E35352

Accessibility & contrast

On white

7.88

#A01B1A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.67

#A01B1A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #A01B1A

7.88:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##A01B1A	#FFFFFF	#000000	##FFFFFF
##A01B1A	1.00	7.88	2.67	7.88
#FFFFFF	7.88	1.00	21.00	1.00
#000000	2.67	21.00	1.00	21.00
##FFFFFF	7.88	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#473F18

Deuteranopia (green-blind)

#675C13

Tritanopia (blue-blind)

#B1001D

Achromatopsia (no color)

#515151

Design tokens & code

CSS

--color: #a01b1a;
/* rgb */ color: rgb(160, 27, 26);
/* oklch */ color: oklch(45.7% 0.168 27.4);

Tailwind

colors: {
  custom: {
    50: '#c66658',
    500: '#a01b1a',
    950: '#000000',
  },
}

SCSS

$custom: #a01b1a;
$custom-light: #c66658;
$custom-dark: #000000;

JSON

{
  "hex": "#a01b1a",
  "rgb": {
    "r": 160,
    "g": 27,
    "b": 26
  },
  "hsl": {
    "h": 0.448,
    "s": 72.043,
    "l": 36.471
  },
  "oklch": {
    "l": 0.45701,
    "c": 0.16816,
    "h": 27.4
  },
  "luminance": 0.08332
}

Semantic roles & 50–950 ramp

primary

#A01B1A

secondary

#50C5C5

accent

#EDEF39

background

#FDF6F5

surface

#FAEBE9

border

#D3C6C5

text

#150703

muted

#837A78

Preview Lab

Preview with #A01B1A

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

Preview Lab → · Contrast checker → · Palette generator →