#5B1117#5B1117

#5B1117 is a dark, moderate red. Relative luminance 0.027; OKLCH L 31.2% C 0.106 H 21.8°. Best body text is #FFFFFF at 13.66:1 contrast (WCAG AA passes).

Color values

HEX	#5B1117
RGB	rgb(91, 17, 23)
HSL	hsl(355, 69%, 21%)
HSV	hsv(355, 81%, 36%)
CMYK	cmyk(0%, 81.3%, 74.7%, 64.3%)
CIE-LAB	lab(18.75, 33.36, 16.89)
CIE-LCH	lch(18.75, 37.39, 26.86°)
OKLab	oklab(31.25% 0.098 0.0392)
OKLCH	oklch(31.25% 0.106 21.8)
XYZ	xyz(4.6700, 2.6876, 1.0833)
Luminance	0.0269 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#5B1117 #115B55

analogous

#5B113C #5B1117 #5B3011

triadic

#5B1117 #175B11 #11175B

tetradic

#5B1117 #3C5B11 #115B55 #30115B

square

#5B1117 #3C5B11 #115B55 #30115B

split-complementary

#5B1117 #115B30 #113C5B

monochromatic

#1A0507 #27070A #5B1117 #8F1B24 #C22431

Accessibility & contrast

On white

13.66

#5B1117 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.54

#5B1117 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #5B1117

13.66:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##5B1117	#FFFFFF	#000000	##FFFFFF
##5B1117	1.00	13.66	1.54	13.66
#FFFFFF	13.66	1.00	21.00	1.00
#000000	1.54	21.00	1.00	21.00
##FFFFFF	13.66	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#272417

Deuteranopia (green-blind)

#393315

Tritanopia (blue-blind)

#650014

Achromatopsia (no color)

#2E2E2E

Design tokens & code

CSS

--color: #5b1117;
/* rgb */ color: rgb(91, 17, 23);
/* oklch */ color: oklch(31.2% 0.106 21.8);

Tailwind

colors: {
  custom: {
    50: '#905653',
    500: '#5b1117',
    950: '#000000',
  },
}

SCSS

$custom: #5b1117;
$custom-light: #905653;
$custom-dark: #000000;

JSON

{
  "hex": "#5b1117",
  "rgb": {
    "r": 91,
    "g": 17,
    "b": 23
  },
  "hsl": {
    "h": 355.135,
    "s": 68.519,
    "l": 21.176
  },
  "oklch": {
    "l": 0.31249,
    "c": 0.10554,
    "h": 21.8
  },
  "luminance": 0.02687
}

Semantic roles & 50–950 ramp

primary

#5B1117

secondary

#34948C

accent

#EBDD3C

background

#F9F5F4

surface

#F2E9E7

border

#CCC5C3

text

#0E0302

muted

#7E7878

Preview Lab

Preview with #5B1117

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

Preview Lab → · Contrast checker → · Palette generator →