#5B131D#5B131D

#5B131D is a dark, moderate red. Relative luminance 0.028; OKLCH L 31.6% C 0.103 H 17.9°. Best body text is #FFFFFF at 13.50:1 contrast (WCAG AA passes).

Color values

HEX	#5B131D
RGB	rgb(91, 19, 29)
HSL	hsl(352, 65%, 22%)
HSV	hsv(352, 79%, 36%)
CMYK	cmyk(0%, 79.1%, 68.1%, 64.3%)
CIE-LAB	lab(19.14, 32.97, 13.20)
CIE-LCH	lch(19.14, 35.51, 21.82°)
OKLab	oklab(31.58% 0.0982 0.0318)
OKLCH	oklch(31.58% 0.103 17.9)
XYZ	xyz(4.7695, 2.7793, 1.4475)
Luminance	0.0278 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#5B131D #135B51

analogous

#5B1341 #5B131D #5B2D13

triadic

#5B131D #1D5B13 #131D5B

tetradic

#5B131D #415B13 #135B51 #2D135B

square

#5B131D #415B13 #135B51 #2D135B

split-complementary

#5B131D #135B2D #13415B

monochromatic

#190508 #28080D #5B131D #8E1E2D #C0283D

Accessibility & contrast

On white

13.50

#5B131D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.56

#5B131D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #5B131D

13.50:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##5B131D	#FFFFFF	#000000	##FFFFFF
##5B131D	1.00	13.50	1.56	13.50
#FFFFFF	13.50	1.00	21.00	1.00
#000000	1.56	21.00	1.00	21.00
##FFFFFF	13.50	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#27251D

Deuteranopia (green-blind)

#39341B

Tritanopia (blue-blind)

#640017

Achromatopsia (no color)

#2E2E2E

Design tokens & code

CSS

--color: #5b131d;
/* rgb */ color: rgb(91, 19, 29);
/* oklch */ color: oklch(31.6% 0.103 17.9);

Tailwind

colors: {
  custom: {
    50: '#8f5758',
    500: '#5b131d',
    950: '#000000',
  },
}

SCSS

$custom: #5b131d;
$custom-light: #8f5758;
$custom-dark: #000000;

JSON

{
  "hex": "#5b131d",
  "rgb": {
    "r": 91,
    "g": 19,
    "b": 29
  },
  "hsl": {
    "h": 351.667,
    "s": 65.455,
    "l": 21.569
  },
  "oklch": {
    "l": 0.31576,
    "c": 0.10317,
    "h": 17.9
  },
  "luminance": 0.02779
}

Semantic roles & 50–950 ramp

primary

#5B131D

secondary

#379386

accent

#E8D13F

background

#F9F5F5

surface

#F2E9E9

border

#CCC5C5

text

#0D0303

muted

#7E7878

Preview Lab

Preview with #5B131D

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

Preview Lab → · Contrast checker → · Palette generator →