#A11E1B#A11E1B

#A11E1B is a mid, vivid red. Relative luminance 0.086; OKLCH L 46.1% C 0.167 H 27.7°. Best body text is #FFFFFF at 7.73:1 contrast (WCAG AA passes).

Color values

HEX	#A11E1B
RGB	rgb(161, 30, 27)
HSL	hsl(1, 71%, 37%)
HSV	hsv(1, 83%, 63%)
CMYK	cmyk(0%, 81.4%, 83.2%, 36.9%)
CIE-LAB	lab(35.18, 51.77, 36.49)
CIE-LCH	lch(35.18, 63.34, 35.18°)
OKLab	oklab(46.12% 0.1479 0.0776)
OKLCH	oklch(46.12% 0.167 27.7)
XYZ	xyz(15.3620, 8.5873, 1.8854)
Luminance	0.0858 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#A11E1B #1B9EA1

analogous

#A11B5B #A11E1B #A1611B

triadic

#A11E1B #1BA11E #1E1BA1

tetradic

#A11E1B #5BA11B #1B9EA1 #611BA1

square

#A11E1B #5BA11B #1B9EA1 #611BA1

split-complementary

#A11E1B #1BA161 #1B5BA1

monochromatic

#380A09 #6D1412 #A11E1B #D52824 #E25754

Accessibility & contrast

On white

7.73

#A11E1B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.72

#A11E1B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #A11E1B

7.73:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##A11E1B	#FFFFFF	#000000	##FFFFFF
##A11E1B	1.00	7.73	2.72	7.73
#FFFFFF	7.73	1.00	21.00	1.00
#000000	2.72	21.00	1.00	21.00
##FFFFFF	7.73	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#484119

Deuteranopia (green-blind)

#685D14

Tritanopia (blue-blind)

#B2001F

Achromatopsia (no color)

#535353

Design tokens & code

CSS

--color: #a11e1b;
/* rgb */ color: rgb(161, 30, 27);
/* oklch */ color: oklch(46.1% 0.167 27.7);

Tailwind

colors: {
  custom: {
    50: '#c66859',
    500: '#a11e1b',
    950: '#000000',
  },
}

SCSS

$custom: #a11e1b;
$custom-light: #c66859;
$custom-dark: #000000;

JSON

{
  "hex": "#a11e1b",
  "rgb": {
    "r": 161,
    "g": 30,
    "b": 27
  },
  "hsl": {
    "h": 1.343,
    "s": 71.277,
    "l": 36.863
  },
  "oklch": {
    "l": 0.46117,
    "c": 0.167,
    "h": 27.7
  },
  "luminance": 0.08585
}

Semantic roles & 50–950 ramp

primary

#A11E1B

secondary

#52C3C5

accent

#EAEE3A

background

#FDF6F5

surface

#FAEBE9

border

#D3C6C5

text

#150703

muted

#837A78

Preview Lab

Preview with #A11E1B

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

Preview Lab → · Contrast checker → · Palette generator →