#A01831#A01831

#A01831 is a mid, vivid red. Relative luminance 0.083; OKLCH L 45.8% C 0.168 H 18.3°. Best body text is #FFFFFF at 7.87:1 contrast (WCAG AA passes).

Color values

HEX	#A01831
RGB	rgb(160, 24, 49)
HSL	hsl(349, 74%, 36%)
HSV	hsv(349, 85%, 63%)
CMYK	cmyk(0%, 85%, 69.4%, 37.3%)
CIE-LAB	lab(34.70, 53.91, 22.60)
CIE-LCH	lch(34.70, 58.46, 22.74°)
OKLab	oklab(45.82% 0.1598 0.0529)
OKLCH	oklch(45.82% 0.168 18.3)
XYZ	xyz(15.3800, 8.3510, 3.7072)
Luminance	0.0835 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#A01831 #18A087

analogous

#A01875 #A01831 #A04318

triadic

#A01831 #31A018 #1831A0

tetradic

#A01831 #75A018 #18A087 #4318A0

square

#A01831 #75A018 #18A087 #4318A0

split-complementary

#A01831 #18A043 #1875A0

monochromatic

#360810 #6B1021 #A01831 #D52041 #E44E6A

Accessibility & contrast

On white

7.87

#A01831 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.67

#A01831 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #A01831

7.87:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##A01831	#FFFFFF	#000000	##FFFFFF
##A01831	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)

#433F31

Deuteranopia (green-blind)

#655C2D

Tritanopia (blue-blind)

#B00024

Achromatopsia (no color)

#525252

Design tokens & code

CSS

--color: #a01831;
/* rgb */ color: rgb(160, 24, 49);
/* oklch */ color: oklch(45.8% 0.168 18.3);

Tailwind

colors: {
  custom: {
    50: '#c46668',
    500: '#a01831',
    950: '#000000',
  },
}

SCSS

$custom: #a01831;
$custom-light: #c46668;
$custom-dark: #000000;

JSON

{
  "hex": "#a01831",
  "rgb": {
    "r": 160,
    "g": 24,
    "b": 49
  },
  "hsl": {
    "h": 348.971,
    "s": 73.913,
    "l": 36.078
  },
  "oklch": {
    "l": 0.45821,
    "c": 0.16832,
    "h": 18.3
  },
  "luminance": 0.08349
}

Semantic roles & 50–950 ramp

primary

#A01831

secondary

#4DC6B0

accent

#F1CE37

background

#FDF6F6

surface

#FAEBEB

border

#D3C6C6

text

#140706

muted

#837A7A

Preview Lab

Preview with #A01831

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

Preview Lab → · Contrast checker → · Palette generator →