#5B1811#5B1811

#5B1811 is a dark, moderate red. Relative luminance 0.029; OKLCH L 31.9% C 0.099 H 29.6°. Best body text is #FFFFFF at 13.26:1 contrast (WCAG AA passes).

Color values

HEX	#5B1811
RGB	rgb(91, 24, 17)
HSL	hsl(6, 69%, 21%)
HSV	hsv(6, 81%, 36%)
CMYK	cmyk(0%, 73.6%, 81.3%, 64.3%)
CIE-LAB	lab(19.71, 30.13, 21.92)
CIE-LCH	lch(19.71, 37.26, 36.04°)
OKLab	oklab(31.94% 0.0863 0.049)
OKLCH	oklch(31.94% 0.099 29.6)
XYZ	xyz(4.7427, 2.9186, 0.8438)
Luminance	0.0292 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#5B1811 #11545B

analogous

#5B112F #5B1811 #5B3D11

triadic

#5B1811 #115B18 #18115B

tetradic

#5B1811 #2F5B11 #11545B #3D115B

square

#5B1811 #2F5B11 #11545B #3D115B

split-complementary

#5B1811 #115B3D #112F5B

monochromatic

#1A0705 #270A07 #5B1811 #8F261B #C23324

Accessibility & contrast

On white

13.26

#5B1811 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.58

#5B1811 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #5B1811

13.26:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##5B1811	#FFFFFF	#000000	##FFFFFF
##5B1811	1.00	13.26	1.58	13.26
#FFFFFF	13.26	1.00	21.00	1.00
#000000	1.58	21.00	1.00	21.00
##FFFFFF	13.26	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2B2610

Deuteranopia (green-blind)

#3C350F

Tritanopia (blue-blind)

#650417

Achromatopsia (no color)

#303030

Design tokens & code

CSS

--color: #5b1811;
/* rgb */ color: rgb(91, 24, 17);
/* oklch */ color: oklch(31.9% 0.099 29.6);

Tailwind

colors: {
  custom: {
    50: '#90594f',
    500: '#5b1811',
    950: '#000000',
  },
}

SCSS

$custom: #5b1811;
$custom-light: #90594f;
$custom-dark: #000000;

JSON

{
  "hex": "#5b1811",
  "rgb": {
    "r": 91,
    "g": 24,
    "b": 17
  },
  "hsl": {
    "h": 5.676,
    "s": 68.519,
    "l": 21.176
  },
  "oklch": {
    "l": 0.31943,
    "c": 0.09924,
    "h": 29.6
  },
  "luminance": 0.02918
}

Semantic roles & 50–950 ramp

primary

#5B1811

secondary

#348B94

accent

#DBEB3C

background

#F9F5F4

surface

#F2E9E7

border

#CCC5C3

text

#0E0402

muted

#7E7978

Preview Lab

Preview with #5B1811

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

Preview Lab → · Contrast checker → · Palette generator →