#A01B19#A01B19

#A01B19 is a mid, vivid red. Relative luminance 0.083; OKLCH L 45.7% C 0.168 H 27.7°. Best body text is #FFFFFF at 7.88:1 contrast (WCAG AA passes).

Color values

HEX	#A01B19
RGB	rgb(160, 27, 25)
HSL	hsl(1, 73%, 36%)
HSV	hsv(1, 84%, 63%)
CMYK	cmyk(0%, 83.1%, 84.4%, 37.3%)
CIE-LAB	lab(34.66, 52.23, 37.03)
CIE-LCH	lch(34.66, 64.03, 35.33°)
OKLab	oklab(45.69% 0.149 0.0781)
OKLCH	oklch(45.69% 0.168 27.7)
XYZ	xyz(15.0665, 8.3301, 1.7341)
Luminance	0.0833 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#A01B19 #199EA0

analogous

#A0195B #A01B19 #A05F19

triadic

#A01B19 #19A01B #1B19A0

tetradic

#A01B19 #5BA019 #199EA0 #5F19A0

square

#A01B19 #5BA019 #199EA0 #5F19A0

split-complementary

#A01B19 #19A05F #195BA0

monochromatic

#360908 #6B1211 #A01B19 #D52421 #E45250

Accessibility & contrast

On white

7.88

#A01B19 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.67

#A01B19 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #A01B19

7.88:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##A01B19	#FFFFFF	#000000	##FFFFFF
##A01B19	1.00	7.88	2.67	7.88
#FFFFFF	7.88	1.00	21.00	1.00
#000000	2.67	21.00	1.00	21.00
##FFFFFF	7.88	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#473F17

Deuteranopia (green-blind)

#675C11

Tritanopia (blue-blind)

#B1001D

Achromatopsia (no color)

#515151

Design tokens & code

CSS

--color: #a01b19;
/* rgb */ color: rgb(160, 27, 25);
/* oklch */ color: oklch(45.7% 0.168 27.7);

Tailwind

colors: {
  custom: {
    50: '#c66657',
    500: '#a01b19',
    950: '#000000',
  },
}

SCSS

$custom: #a01b19;
$custom-light: #c66657;
$custom-dark: #000000;

JSON

{
  "hex": "#a01b19",
  "rgb": {
    "r": 160,
    "g": 27,
    "b": 25
  },
  "hsl": {
    "h": 0.889,
    "s": 72.973,
    "l": 36.275
  },
  "oklch": {
    "l": 0.45692,
    "c": 0.16826,
    "h": 27.7
  },
  "luminance": 0.08328
}

Semantic roles & 50–950 ramp

primary

#A01B19

secondary

#4FC4C6

accent

#EDF038

background

#FDF6F5

surface

#FAEBE9

border

#D3C6C5

text

#150703

muted

#837A78

Preview Lab

Preview with #A01B19

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

Preview Lab → · Contrast checker → · Palette generator →