#A01B33#A01B33

#A01B33 is a mid, vivid red. Relative luminance 0.085; OKLCH L 46.1% C 0.166 H 17.9°. Best body text is #FFFFFF at 7.78:1 contrast (WCAG AA passes).

Color values

HEX	#A01B33
RGB	rgb(160, 27, 51)
HSL	hsl(349, 71%, 37%)
HSV	hsv(349, 83%, 63%)
CMYK	cmyk(0%, 83.1%, 68.1%, 37.3%)
CIE-LAB	lab(35.00, 53.27, 21.69)
CIE-LCH	lch(35.00, 57.52, 22.15°)
OKLab	oklab(46.05% 0.1582 0.0512)
OKLCH	oklch(46.05% 0.166 17.9)
XYZ	xyz(15.4884, 8.4989, 3.9562)
Luminance	0.0850 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#A01B33 #1BA088

analogous

#A01B76 #A01B33 #A0461B

triadic

#A01B33 #33A01B #1B33A0

tetradic

#A01B33 #76A01B #1BA088 #461BA0

square

#A01B33 #76A01B #1BA088 #461BA0

split-complementary

#A01B33 #1BA046 #1B76A0

monochromatic

#370912 #6C1222 #A01B33 #D42444 #E2536D

Accessibility & contrast

On white

7.78

#A01B33 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.70

#A01B33 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #A01B33

7.78:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##A01B33	#FFFFFF	#000000	##FFFFFF
##A01B33	1.00	7.78	2.70	7.78
#FFFFFF	7.78	1.00	21.00	1.00
#000000	2.70	21.00	1.00	21.00
##FFFFFF	7.78	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#444133

Deuteranopia (green-blind)

#655C2F

Tritanopia (blue-blind)

#B00026

Achromatopsia (no color)

#525252

Design tokens & code

CSS

--color: #a01b33;
/* rgb */ color: rgb(160, 27, 51);
/* oklch */ color: oklch(46.1% 0.166 17.9);

Tailwind

colors: {
  custom: {
    50: '#c4676a',
    500: '#a01b33',
    950: '#000000',
  },
}

SCSS

$custom: #a01b33;
$custom-light: #c4676a;
$custom-dark: #000000;

JSON

{
  "hex": "#a01b33",
  "rgb": {
    "r": 160,
    "g": 27,
    "b": 51
  },
  "hsl": {
    "h": 349.173,
    "s": 71.123,
    "l": 36.667
  },
  "oklch": {
    "l": 0.46052,
    "c": 0.16625,
    "h": 17.9
  },
  "luminance": 0.08496
}

Semantic roles & 50–950 ramp

primary

#A01B33

secondary

#52C5B0

accent

#EECD3A

background

#FDF6F6

surface

#FAEBEB

border

#D3C6C6

text

#140706

muted

#837A7A

Preview Lab

Preview with #A01B33

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

Preview Lab → · Contrast checker → · Palette generator →