#A01D1B#A01D1B

#A01D1B is a mid, vivid red. Relative luminance 0.084; OKLCH L 45.9% C 0.167 H 27.5°. Best body text is #FFFFFF at 7.82:1 contrast (WCAG AA passes).

Color values

HEX	#A01D1B
RGB	rgb(160, 29, 27)
HSL	hsl(1, 71%, 37%)
HSV	hsv(1, 83%, 63%)
CMYK	cmyk(0%, 81.9%, 83.1%, 37.3%)
CIE-LAB	lab(34.87, 51.75, 36.13)
CIE-LCH	lch(34.87, 63.11, 34.92°)
OKLab	oklab(45.85% 0.1479 0.0769)
OKLCH	oklch(45.85% 0.167 27.5)
XYZ	xyz(15.1363, 8.4339, 1.8676)
Luminance	0.0843 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#A01D1B #1B9EA0

analogous

#A01B5C #A01D1B #A0601B

triadic

#A01D1B #1BA01D #1D1BA0

tetradic

#A01D1B #5CA01B #1B9EA0 #601BA0

square

#A01D1B #5CA01B #1B9EA0 #601BA0

split-complementary

#A01D1B #1BA060 #1B5CA0

monochromatic

#370A09 #6C1412 #A01D1B #D42624 #E25653

Accessibility & contrast

On white

7.82

#A01D1B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.69

#A01D1B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #A01D1B

7.82:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##A01D1B	#FFFFFF	#000000	##FFFFFF
##A01D1B	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)

#484019

Deuteranopia (green-blind)

#685C14

Tritanopia (blue-blind)

#B1001F

Achromatopsia (no color)

#525252

Design tokens & code

CSS

--color: #a01d1b;
/* rgb */ color: rgb(160, 29, 27);
/* oklch */ color: oklch(45.9% 0.167 27.5);

Tailwind

colors: {
  custom: {
    50: '#c66758',
    500: '#a01d1b',
    950: '#000000',
  },
}

SCSS

$custom: #a01d1b;
$custom-light: #c66758;
$custom-dark: #000000;

JSON

{
  "hex": "#a01d1b",
  "rgb": {
    "r": 160,
    "g": 29,
    "b": 27
  },
  "hsl": {
    "h": 0.902,
    "s": 71.123,
    "l": 36.667
  },
  "oklch": {
    "l": 0.45853,
    "c": 0.16672,
    "h": 27.5
  },
  "luminance": 0.08431
}

Semantic roles & 50–950 ramp

primary

#A01D1B

secondary

#52C3C5

accent

#EBEE3A

background

#FDF6F5

surface

#FAEBE9

border

#D3C6C5

text

#150703

muted

#837A78

Preview Lab

Preview with #A01D1B

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

Preview Lab → · Contrast checker → · Palette generator →