#A01B31#A01B31

#A01B31 is a mid, vivid red. Relative luminance 0.085; OKLCH L 46.0% C 0.166 H 18.8°. Best body text is #FFFFFF at 7.79:1 contrast (WCAG AA passes).

Color values

HEX	#A01B31
RGB	rgb(160, 27, 49)
HSL	hsl(350, 71%, 37%)
HSV	hsv(350, 83%, 63%)
CMYK	cmyk(0%, 83.1%, 69.4%, 37.3%)
CIE-LAB	lab(34.97, 53.17, 22.92)
CIE-LCH	lch(34.97, 57.90, 23.32°)
OKLab	oklab(46.02% 0.1574 0.0537)
OKLCH	oklch(46.02% 0.166 18.8)
XYZ	xyz(15.4453, 8.4816, 3.7290)
Luminance	0.0848 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#A01B31 #1BA08A

analogous

#A01B74 #A01B31 #A0481B

triadic

#A01B31 #31A01B #1B31A0

tetradic

#A01B31 #74A01B #1BA08A #481BA0

square

#A01B31 #74A01B #1BA08A #481BA0

split-complementary

#A01B31 #1BA048 #1B74A0

monochromatic

#370911 #6C1221 #A01B31 #D42441 #E2536B

Accessibility & contrast

On white

7.79

#A01B31 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.70

#A01B31 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #A01B31

7.79:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##A01B31	#FFFFFF	#000000	##FFFFFF
##A01B31	1.00	7.79	2.70	7.79
#FFFFFF	7.79	1.00	21.00	1.00
#000000	2.70	21.00	1.00	21.00
##FFFFFF	7.79	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#454031

Deuteranopia (green-blind)

#665C2D

Tritanopia (blue-blind)

#B00025

Achromatopsia (no color)

#525252

Design tokens & code

CSS

--color: #a01b31;
/* rgb */ color: rgb(160, 27, 49);
/* oklch */ color: oklch(46.0% 0.166 18.8);

Tailwind

colors: {
  custom: {
    50: '#c46768',
    500: '#a01b31',
    950: '#000000',
  },
}

SCSS

$custom: #a01b31;
$custom-light: #c46768;
$custom-dark: #000000;

JSON

{
  "hex": "#a01b31",
  "rgb": {
    "r": 160,
    "g": 27,
    "b": 49
  },
  "hsl": {
    "h": 350.075,
    "s": 71.123,
    "l": 36.667
  },
  "oklch": {
    "l": 0.46015,
    "c": 0.16628,
    "h": 18.8
  },
  "luminance": 0.08479
}

Semantic roles & 50–950 ramp

primary

#A01B31

secondary

#52C5B2

accent

#EED03A

background

#FDF6F6

surface

#FAEBEB

border

#D3C6C6

text

#140706

muted

#837A7A

Preview Lab

Preview with #A01B31

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

Preview Lab → · Contrast checker → · Palette generator →