#A01B18#A01B18

#A01B18 is a mid, vivid red. Relative luminance 0.083; OKLCH L 45.7% C 0.168 H 27.9°. Best body text is #FFFFFF at 7.88:1 contrast (WCAG AA passes).

Color values

HEX	#A01B18
RGB	rgb(160, 27, 24)
HSL	hsl(1, 74%, 36%)
HSV	hsv(1, 85%, 63%)
CMYK	cmyk(0%, 83.1%, 85%, 37.3%)
CIE-LAB	lab(34.65, 52.21, 37.56)
CIE-LCH	lch(34.65, 64.31, 35.73°)
OKLab	oklab(45.68% 0.1488 0.0789)
OKLCH	oklch(45.68% 0.168 27.9)
XYZ	xyz(15.0559, 8.3259, 1.6783)
Luminance	0.0832 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#A01B18 #189DA0

analogous

#A01859 #A01B18 #A05F18

triadic

#A01B18 #18A01B #1B18A0

tetradic

#A01B18 #59A018 #189DA0 #5F18A0

square

#A01B18 #59A018 #189DA0 #5F18A0

split-complementary

#A01B18 #18A05F #1859A0

monochromatic

#360908 #6B1210 #A01B18 #D52420 #E4514E

Accessibility & contrast

On white

7.88

#A01B18 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.66

#A01B18 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #A01B18

7.88:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##A01B18	#FFFFFF	#000000	##FFFFFF
##A01B18	1.00	7.88	2.66	7.88
#FFFFFF	7.88	1.00	21.00	1.00
#000000	2.66	21.00	1.00	21.00
##FFFFFF	7.88	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#473F15

Deuteranopia (green-blind)

#675C10

Tritanopia (blue-blind)

#B1001D

Achromatopsia (no color)

#515151

Design tokens & code

CSS

--color: #a01b18;
/* rgb */ color: rgb(160, 27, 24);
/* oklch */ color: oklch(45.7% 0.168 27.9);

Tailwind

colors: {
  custom: {
    50: '#c66656',
    500: '#a01b18',
    950: '#000000',
  },
}

SCSS

$custom: #a01b18;
$custom-light: #c66656;
$custom-dark: #000000;

JSON

{
  "hex": "#a01b18",
  "rgb": {
    "r": 160,
    "g": 27,
    "b": 24
  },
  "hsl": {
    "h": 1.324,
    "s": 73.913,
    "l": 36.078
  },
  "oklch": {
    "l": 0.45683,
    "c": 0.16838,
    "h": 27.9
  },
  "luminance": 0.08323
}

Semantic roles & 50–950 ramp

primary

#A01B18

secondary

#4DC4C6

accent

#ECF137

background

#FDF6F5

surface

#FAEBE9

border

#D3C6C5

text

#150703

muted

#837A78

Preview Lab

Preview with #A01B18

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

Preview Lab → · Contrast checker → · Palette generator →