#A01B1F#A01B1F

#A01B1F is a mid, vivid red. Relative luminance 0.084; OKLCH L 45.8% C 0.168 H 25.8°. Best body text is #FFFFFF at 7.86:1 contrast (WCAG AA passes).

Color values

HEX	#A01B1F
RGB	rgb(160, 27, 31)
HSL	hsl(358, 71%, 37%)
HSV	hsv(358, 83%, 63%)
CMYK	cmyk(0%, 83.1%, 80.6%, 37.3%)
CIE-LAB	lab(34.72, 52.41, 33.71)
CIE-LCH	lch(34.72, 62.31, 32.75°)
OKLab	oklab(45.75% 0.1508 0.0731)
OKLCH	oklch(45.75% 0.168 25.8)
XYZ	xyz(15.1383, 8.3589, 2.1124)
Luminance	0.0836 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#A01B1F #1BA09C

analogous

#A01B62 #A01B1F #A0591B

triadic

#A01B1F #1FA01B #1B1FA0

tetradic

#A01B1F #62A01B #1BA09C #591BA0

square

#A01B1F #62A01B #1BA09C #591BA0

split-complementary

#A01B1F #1BA059 #1B62A0

monochromatic

#37090B #6C1215 #A01B1F #D42429 #E25358

Accessibility & contrast

On white

7.86

#A01B1F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.67

#A01B1F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #A01B1F

7.86:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##A01B1F	#FFFFFF	#000000	##FFFFFF
##A01B1F	1.00	7.86	2.67	7.86
#FFFFFF	7.86	1.00	21.00	1.00
#000000	2.67	21.00	1.00	21.00
##FFFFFF	7.86	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#473F1D

Deuteranopia (green-blind)

#675C19

Tritanopia (blue-blind)

#B1001F

Achromatopsia (no color)

#525252

Design tokens & code

CSS

--color: #a01b1f;
/* rgb */ color: rgb(160, 27, 31);
/* oklch */ color: oklch(45.8% 0.168 25.8);

Tailwind

colors: {
  custom: {
    50: '#c5665b',
    500: '#a01b1f',
    950: '#000000',
  },
}

SCSS

$custom: #a01b1f;
$custom-light: #c5665b;
$custom-dark: #000000;

JSON

{
  "hex": "#a01b1f",
  "rgb": {
    "r": 160,
    "g": 27,
    "b": 31
  },
  "hsl": {
    "h": 358.195,
    "s": 71.123,
    "l": 36.667
  },
  "oklch": {
    "l": 0.45754,
    "c": 0.1676,
    "h": 25.8
  },
  "luminance": 0.08356
}

Semantic roles & 50–950 ramp

primary

#A01B1F

secondary

#52C5C1

accent

#EEE83A

background

#FDF6F5

surface

#FAEBE9

border

#D3C6C5

text

#150704

muted

#837A79

Preview Lab

Preview with #A01B1F

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

Preview Lab → · Contrast checker → · Palette generator →