#A11B1A#A11B1A

#A11B1A is a mid, vivid red. Relative luminance 0.084; OKLCH L 45.9% C 0.169 H 27.4°. Best body text is #FFFFFF at 7.81:1 contrast (WCAG AA passes).

Color values

HEX	#A11B1A
RGB	rgb(161, 27, 26)
HSL	hsl(0, 72%, 37%)
HSV	hsv(0, 84%, 63%)
CMYK	cmyk(0%, 83.2%, 83.9%, 36.9%)
CIE-LAB	lab(34.88, 52.56, 36.76)
CIE-LCH	lch(34.88, 64.14, 34.97°)
OKLab	oklab(45.89% 0.1501 0.0778)
OKLCH	oklch(45.89% 0.169 27.4)
XYZ	xyz(15.2782, 8.4380, 1.8013)
Luminance	0.0844 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#A11B1A #1AA0A1

analogous

#A11A5D #A11B1A #A15E1A

triadic

#A11B1A #1AA11B #1B1AA1

tetradic

#A11B1A #5DA11A #1AA0A1 #5E1AA1

square

#A11B1A #5DA11A #1AA0A1 #5E1AA1

split-complementary

#A11B1A #1AA15E #1A5DA1

monochromatic

#380909 #6C1211 #A11B1A #D62423 #E35352

Accessibility & contrast

On white

7.81

#A11B1A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.69

#A11B1A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #A11B1A

7.81:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##A11B1A	#FFFFFF	#000000	##FFFFFF
##A11B1A	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)

#473F18

Deuteranopia (green-blind)

#685C12

Tritanopia (blue-blind)

#B2001D

Achromatopsia (no color)

#525252

Design tokens & code

CSS

--color: #a11b1a;
/* rgb */ color: rgb(161, 27, 26);
/* oklch */ color: oklch(45.9% 0.169 27.4);

Tailwind

colors: {
  custom: {
    50: '#c66658',
    500: '#a11b1a',
    950: '#000000',
  },
}

SCSS

$custom: #a11b1a;
$custom-light: #c66658;
$custom-dark: #000000;

JSON

{
  "hex": "#a11b1a",
  "rgb": {
    "r": 161,
    "g": 27,
    "b": 26
  },
  "hsl": {
    "h": 0.444,
    "s": 72.193,
    "l": 36.667
  },
  "oklch": {
    "l": 0.45893,
    "c": 0.1691,
    "h": 27.4
  },
  "luminance": 0.08436
}

Semantic roles & 50–950 ramp

primary

#A11B1A

secondary

#51C5C6

accent

#EEEF39

background

#FDF6F5

surface

#FAEBE9

border

#D3C6C5

text

#150703

muted

#837A78

Preview Lab

Preview with #A11B1A

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

Preview Lab → · Contrast checker → · Palette generator →