#A01B23#A01B23

#A01B23 is a mid, vivid red. Relative luminance 0.084; OKLCH L 45.8% C 0.167 H 24.5°. Best body text is #FFFFFF at 7.85:1 contrast (WCAG AA passes).

Color values

HEX	#A01B23
RGB	rgb(160, 27, 35)
HSL	hsl(356, 71%, 37%)
HSV	hsv(356, 83%, 63%)
CMYK	cmyk(0%, 83.1%, 78.1%, 37.3%)
CIE-LAB	lab(34.76, 52.55, 31.39)
CIE-LCH	lch(34.76, 61.21, 30.85°)
OKLab	oklab(45.8% 0.1522 0.0693)
OKLCH	oklch(45.8% 0.167 24.5)
XYZ	xyz(15.1944, 8.3813, 2.4075)
Luminance	0.0838 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#A01B23 #1BA098

analogous

#A01B66 #A01B23 #A0561B

triadic

#A01B23 #23A01B #1B23A0

tetradic

#A01B23 #66A01B #1BA098 #561BA0

square

#A01B23 #66A01B #1BA098 #561BA0

split-complementary

#A01B23 #1BA056 #1B66A0

monochromatic

#37090C #6C1218 #A01B23 #D4242E #E2535C

Accessibility & contrast

On white

7.85

#A01B23 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.68

#A01B23 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #A01B23

7.85:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##A01B23	#FFFFFF	#000000	##FFFFFF
##A01B23	1.00	7.85	2.68	7.85
#FFFFFF	7.85	1.00	21.00	1.00
#000000	2.68	21.00	1.00	21.00
##FFFFFF	7.85	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#464022

Deuteranopia (green-blind)

#675C1D

Tritanopia (blue-blind)

#B10020

Achromatopsia (no color)

#525252

Design tokens & code

CSS

--color: #a01b23;
/* rgb */ color: rgb(160, 27, 35);
/* oklch */ color: oklch(45.8% 0.167 24.5);

Tailwind

colors: {
  custom: {
    50: '#c5665e',
    500: '#a01b23',
    950: '#000000',
  },
}

SCSS

$custom: #a01b23;
$custom-light: #c5665e;
$custom-dark: #000000;

JSON

{
  "hex": "#a01b23",
  "rgb": {
    "r": 160,
    "g": 27,
    "b": 35
  },
  "hsl": {
    "h": 356.391,
    "s": 71.123,
    "l": 36.667
  },
  "oklch": {
    "l": 0.45801,
    "c": 0.16719,
    "h": 24.5
  },
  "luminance": 0.08379
}

Semantic roles & 50–950 ramp

primary

#A01B23

secondary

#52C5BE

accent

#EEE33A

background

#FDF6F5

surface

#FAEBE9

border

#D3C6C5

text

#150704

muted

#837A79

Preview Lab

Preview with #A01B23

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

Preview Lab → · Contrast checker → · Palette generator →