#A01A1B#A01A1B

#A01A1B is a mid, vivid red. Relative luminance 0.083; OKLCH L 45.6% C 0.169 H 26.9°. Best body text is #FFFFFF at 7.90:1 contrast (WCAG AA passes).

Color values

HEX	#A01A1B
RGB	rgb(160, 26, 27)
HSL	hsl(360, 72%, 36%)
HSV	hsv(360, 84%, 63%)
CMYK	cmyk(0%, 83.8%, 83.1%, 37.3%)
CIE-LAB	lab(34.59, 52.55, 35.86)
CIE-LCH	lch(34.59, 63.62, 34.31°)
OKLab	oklab(45.64% 0.1504 0.0763)
OKLCH	oklch(45.64% 0.169 26.9)
XYZ	xyz(15.0663, 8.2940, 1.8443)
Luminance	0.0829 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#A01A1B #1AA09F

analogous

#A01A5E #A01A1B #A05C1A

triadic

#A01A1B #1BA01A #1A1BA0

tetradic

#A01A1B #5EA01A #1AA09F #5C1AA0

square

#A01A1B #5EA01A #1AA09F #5C1AA0

split-complementary

#A01A1B #1AA05C #1A5EA0

monochromatic

#370909 #6B1112 #A01A1B #D52324 #E35253

Accessibility & contrast

On white

7.90

#A01A1B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.66

#A01A1B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #A01A1B

7.90:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##A01A1B	#FFFFFF	#000000	##FFFFFF
##A01A1B	1.00	7.90	2.66	7.90
#FFFFFF	7.90	1.00	21.00	1.00
#000000	2.66	21.00	1.00	21.00
##FFFFFF	7.90	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#473F19

Deuteranopia (green-blind)

#675C14

Tritanopia (blue-blind)

#B1001D

Achromatopsia (no color)

#515151

Design tokens & code

CSS

--color: #a01a1b;
/* rgb */ color: rgb(160, 26, 27);
/* oklch */ color: oklch(45.6% 0.169 26.9);

Tailwind

colors: {
  custom: {
    50: '#c66658',
    500: '#a01a1b',
    950: '#000000',
  },
}

SCSS

$custom: #a01a1b;
$custom-light: #c66658;
$custom-dark: #000000;

JSON

{
  "hex": "#a01a1b",
  "rgb": {
    "r": 160,
    "g": 26,
    "b": 27
  },
  "hsl": {
    "h": 359.552,
    "s": 72.043,
    "l": 36.471
  },
  "oklch": {
    "l": 0.45643,
    "c": 0.16868,
    "h": 26.9
  },
  "luminance": 0.08292
}

Semantic roles & 50–950 ramp

primary

#A01A1B

secondary

#50C5C5

accent

#EFED39

background

#FDF6F5

surface

#FAEBE9

border

#D3C6C5

text

#150703

muted

#837A78

Preview Lab

Preview with #A01A1B

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

Preview Lab → · Contrast checker → · Palette generator →