#A01B1C#A01B1C

#A01B1C is a mid, vivid red. Relative luminance 0.083; OKLCH L 45.7% C 0.168 H 26.8°. Best body text is #FFFFFF at 7.87:1 contrast (WCAG AA passes).

Color values

HEX	#A01B1C
RGB	rgb(160, 27, 28)
HSL	hsl(360, 71%, 37%)
HSV	hsv(360, 83%, 63%)
CMYK	cmyk(0%, 83.1%, 82.5%, 37.3%)
CIE-LAB	lab(34.69, 52.32, 35.39)
CIE-LCH	lch(34.69, 63.17, 34.08°)
OKLab	oklab(45.72% 0.1499 0.0757)
OKLCH	oklch(45.72% 0.168 26.8)
XYZ	xyz(15.1006, 8.3438, 1.9138)
Luminance	0.0834 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#A01B1C #1BA09F

analogous

#A01B5F #A01B1C #A05D1B

triadic

#A01B1C #1CA01B #1B1CA0

tetradic

#A01B1C #5FA01B #1BA09F #5D1BA0

square

#A01B1C #5FA01B #1BA09F #5D1BA0

split-complementary

#A01B1C #1BA05D #1B5FA0

monochromatic

#37090A #6C1213 #A01B1C #D42425 #E25354

Accessibility & contrast

On white

7.87

#A01B1C on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.67

#A01B1C on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #A01B1C

7.87:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##A01B1C	#FFFFFF	#000000	##FFFFFF
##A01B1C	1.00	7.87	2.67	7.87
#FFFFFF	7.87	1.00	21.00	1.00
#000000	2.67	21.00	1.00	21.00
##FFFFFF	7.87	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#473F1A

Deuteranopia (green-blind)

#675C15

Tritanopia (blue-blind)

#B1001E

Achromatopsia (no color)

#525252

Design tokens & code

CSS

--color: #a01b1c;
/* rgb */ color: rgb(160, 27, 28);
/* oklch */ color: oklch(45.7% 0.168 26.8);

Tailwind

colors: {
  custom: {
    50: '#c66659',
    500: '#a01b1c',
    950: '#000000',
  },
}

SCSS

$custom: #a01b1c;
$custom-light: #c66659;
$custom-dark: #000000;

JSON

{
  "hex": "#a01b1c",
  "rgb": {
    "r": 160,
    "g": 27,
    "b": 28
  },
  "hsl": {
    "h": 359.549,
    "s": 71.123,
    "l": 36.667
  },
  "oklch": {
    "l": 0.45721,
    "c": 0.16793,
    "h": 26.8
  },
  "luminance": 0.08341
}

Semantic roles & 50–950 ramp

primary

#A01B1C

secondary

#52C5C4

accent

#EEED3A

background

#FDF6F5

surface

#FAEBE9

border

#D3C6C5

text

#150703

muted

#837A78

Preview Lab

Preview with #A01B1C

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

Preview Lab → · Contrast checker → · Palette generator →