#A11831#A11831

#A11831 is a mid, vivid red. Relative luminance 0.085; OKLCH L 46.0% C 0.169 H 18.5°. Best body text is #FFFFFF at 7.81:1 contrast (WCAG AA passes).

Color values

HEX	#A11831
RGB	rgb(161, 24, 49)
HSL	hsl(349, 74%, 36%)
HSV	hsv(349, 85%, 63%)
CMYK	cmyk(0%, 85.1%, 69.6%, 36.9%)
CIE-LAB	lab(34.91, 54.19, 22.90)
CIE-LCH	lch(34.91, 58.84, 22.91°)
OKLab	oklab(46.01% 0.1605 0.0536)
OKLCH	oklch(46.01% 0.169 18.5)
XYZ	xyz(15.5807, 8.4546, 3.7166)
Luminance	0.0845 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#A11831 #18A188

analogous

#A11876 #A11831 #A14418

triadic

#A11831 #31A118 #1831A1

tetradic

#A11831 #76A118 #18A188 #4418A1

square

#A11831 #76A118 #18A188 #4418A1

split-complementary

#A11831 #18A144 #1876A1

monochromatic

#360811 #6C1021 #A11831 #D62041 #E54F6A

Accessibility & contrast

On white

7.81

#A11831 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.69

#A11831 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #A11831

7.81:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##A11831	#FFFFFF	#000000	##FFFFFF
##A11831	1.00	7.81	2.69	7.81
#FFFFFF	7.81	1.00	21.00	1.00
#000000	2.69	21.00	1.00	21.00
##FFFFFF	7.81	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#444031

Deuteranopia (green-blind)

#665C2D

Tritanopia (blue-blind)

#B10024

Achromatopsia (no color)

#525252

Design tokens & code

CSS

--color: #a11831;
/* rgb */ color: rgb(161, 24, 49);
/* oklch */ color: oklch(46.0% 0.169 18.5);

Tailwind

colors: {
  custom: {
    50: '#c56668',
    500: '#a11831',
    950: '#000000',
  },
}

SCSS

$custom: #a11831;
$custom-light: #c56668;
$custom-dark: #000000;

JSON

{
  "hex": "#a11831",
  "rgb": {
    "r": 161,
    "g": 24,
    "b": 49
  },
  "hsl": {
    "h": 349.051,
    "s": 74.054,
    "l": 36.275
  },
  "oklch": {
    "l": 0.46012,
    "c": 0.16925,
    "h": 18.5
  },
  "luminance": 0.08452
}

Semantic roles & 50–950 ramp

primary

#A11831

secondary

#4EC7B1

accent

#F1CF37

background

#FDF6F6

surface

#FAEBEB

border

#D3C6C6

text

#140706

muted

#837A7A

Preview Lab

Preview with #A11831

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

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