#A01D1D#A01D1D

#A01D1D is a mid, vivid red. Relative luminance 0.084; OKLCH L 45.9% C 0.166 H 26.9°. Best body text is #FFFFFF at 7.81:1 contrast (WCAG AA passes).

Color values

HEX	#A01D1D
RGB	rgb(160, 29, 29)
HSL	hsl(0, 69%, 37%)
HSV	hsv(0, 82%, 63%)
CMYK	cmyk(0%, 81.9%, 81.9%, 37.3%)
CIE-LAB	lab(34.89, 51.81, 35.03)
CIE-LCH	lch(34.89, 62.54, 34.06°)
OKLab	oklab(45.87% 0.1485 0.0752)
OKLCH	oklch(45.87% 0.166 26.9)
XYZ	xyz(15.1602, 8.4435, 1.9937)
Luminance	0.0844 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#A01D1D #1DA0A0

analogous

#A01D5F #A01D1D #A05F1D

triadic

#A01D1D #1DA01D #1D1DA0

tetradic

#A01D1D #5FA01D #1DA0A0 #5F1DA0

square

#A01D1D #5FA01D #1DA0A0 #5F1DA0

split-complementary

#A01D1D #1DA05F #1D5FA0

monochromatic

#380A0A #6C1414 #A01D1D #D42626 #E15757

Accessibility & contrast

On white

7.81

#A01D1D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.69

#A01D1D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #A01D1D

7.81:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##A01D1D	#FFFFFF	#000000	##FFFFFF
##A01D1D	1.00	7.81	2.69	7.81
#FFFFFF	7.81	1.00	21.00	1.00
#000000	2.69	21.00	1.00	21.00
##FFFFFF	7.81	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#48401B

Deuteranopia (green-blind)

#675C16

Tritanopia (blue-blind)

#B1001F

Achromatopsia (no color)

#525252

Design tokens & code

CSS

--color: #a01d1d;
/* rgb */ color: rgb(160, 29, 29);
/* oklch */ color: oklch(45.9% 0.166 26.9);

Tailwind

colors: {
  custom: {
    50: '#c5675a',
    500: '#a01d1d',
    950: '#000000',
  },
}

SCSS

$custom: #a01d1d;
$custom-light: #c5675a;
$custom-dark: #000000;

JSON

{
  "hex": "#a01d1d",
  "rgb": {
    "r": 160,
    "g": 29,
    "b": 29
  },
  "hsl": {
    "h": 0,
    "s": 69.312,
    "l": 37.059
  },
  "oklch": {
    "l": 0.45874,
    "c": 0.16648,
    "h": 26.9
  },
  "luminance": 0.08441
}

Semantic roles & 50–950 ramp

primary

#A01D1D

secondary

#55C4C4

accent

#ECEC3C

background

#FDF6F5

surface

#FAEBE9

border

#D3C6C5

text

#150704

muted

#837A79

Preview Lab

Preview with #A01D1D

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

Preview Lab → · Contrast checker → · Palette generator →