#A11D1D#A11D1D

#A11D1D is a mid, vivid red. Relative luminance 0.085; OKLCH L 46.1% C 0.167 H 26.9°. Best body text is #FFFFFF at 7.75:1 contrast (WCAG AA passes).

Color values

HEX	#A11D1D
RGB	rgb(161, 29, 29)
HSL	hsl(0, 69%, 37%)
HSV	hsv(0, 82%, 63%)
CMYK	cmyk(0%, 82%, 82%, 36.9%)
CIE-LAB	lab(35.10, 52.11, 35.30)
CIE-LCH	lch(35.10, 62.94, 34.12°)
OKLab	oklab(46.06% 0.1493 0.0758)
OKLCH	oklch(46.06% 0.167 26.9)
XYZ	xyz(15.3610, 8.5470, 2.0031)
Luminance	0.0854 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#A11D1D #1DA1A1

analogous

#A11D5F #A11D1D #A15F1D

triadic

#A11D1D #1DA11D #1D1DA1

tetradic

#A11D1D #5FA11D #1DA1A1 #5F1DA1

square

#A11D1D #5FA11D #1DA1A1 #5F1DA1

split-complementary

#A11D1D #1DA15F #1D5FA1

monochromatic

#390A0A #6D1414 #A11D1D #D52626 #E15858

Accessibility & contrast

On white

7.75

#A11D1D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.71

#A11D1D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #A11D1D

7.75:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##A11D1D	#FFFFFF	#000000	##FFFFFF
##A11D1D	1.00	7.75	2.71	7.75
#FFFFFF	7.75	1.00	21.00	1.00
#000000	2.71	21.00	1.00	21.00
##FFFFFF	7.75	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#48401B

Deuteranopia (green-blind)

#685D16

Tritanopia (blue-blind)

#B2001F

Achromatopsia (no color)

#535353

Design tokens & code

CSS

--color: #a11d1d;
/* rgb */ color: rgb(161, 29, 29);
/* oklch */ color: oklch(46.1% 0.167 26.9);

Tailwind

colors: {
  custom: {
    50: '#c6675a',
    500: '#a11d1d',
    950: '#000000',
  },
}

SCSS

$custom: #a11d1d;
$custom-light: #c6675a;
$custom-dark: #000000;

JSON

{
  "hex": "#a11d1d",
  "rgb": {
    "r": 161,
    "g": 29,
    "b": 29
  },
  "hsl": {
    "h": 0,
    "s": 69.474,
    "l": 37.255
  },
  "oklch": {
    "l": 0.46064,
    "c": 0.16744,
    "h": 26.9
  },
  "luminance": 0.08545
}

Semantic roles & 50–950 ramp

primary

#A11D1D

secondary

#55C4C4

accent

#ECEC3C

background

#FDF6F5

surface

#FAEBE9

border

#D3C6C5

text

#150704

muted

#837A79

Preview Lab

Preview with #A11D1D

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

Preview Lab → · Contrast checker → · Palette generator →