#5B281B#5B281B

#5B281B is a dark, moderate red. Relative luminance 0.038; OKLCH L 34.5% C 0.079 H 35.4°. Best body text is #FFFFFF at 11.90:1 contrast (WCAG AA passes).

Color values

HEX	#5B281B
RGB	rgb(91, 40, 27)
HSL	hsl(12, 54%, 23%)
HSV	hsv(12, 70%, 36%)
CMYK	cmyk(0%, 56%, 70.3%, 64.3%)
CIE-LAB	lab(23.07, 22.26, 19.46)
CIE-LCH	lch(23.07, 29.57, 41.15°)
OKLab	oklab(34.52% 0.0641 0.0455)
OKLCH	oklch(34.52% 0.079 35.4)
XYZ	xyz(5.2715, 3.8215, 1.4967)
Luminance	0.0382 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#5B281B #1B4E5B

analogous

#5B1B2E #5B281B #5B481B

triadic

#5B281B #1B5B28 #281B5B

tetradic

#5B281B #2E5B1B #1B4E5B #481B5B

square

#5B281B #2E5B1B #1B4E5B #481B5B

split-complementary

#5B281B #1B5B48 #1B2E5B

monochromatic

#180A07 #2C130D #5B281B #8A3D29 #B95137

Accessibility & contrast

On white

11.90

#5B281B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.76

#5B281B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #5B281B

11.90:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##5B281B	#FFFFFF	#000000	##FFFFFF
##5B281B	1.00	11.90	1.76	11.90
#FFFFFF	11.90	1.00	21.00	1.00
#000000	1.76	21.00	1.00	21.00
##FFFFFF	11.90	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#35301A

Deuteranopia (green-blind)

#423B1A

Tritanopia (blue-blind)

#641E25

Achromatopsia (no color)

#373737

Design tokens & code

CSS

--color: #5b281b;
/* rgb */ color: rgb(91, 40, 27);
/* oklch */ color: oklch(34.5% 0.079 35.4);

Tailwind

colors: {
  custom: {
    50: '#8e6357',
    500: '#5b281b',
    950: '#000000',
  },
}

SCSS

$custom: #5b281b;
$custom-light: #8e6357;
$custom-dark: #000000;

JSON

{
  "hex": "#5b281b",
  "rgb": {
    "r": 91,
    "g": 40,
    "b": 27
  },
  "hsl": {
    "h": 12.188,
    "s": 54.237,
    "l": 23.137
  },
  "oklch": {
    "l": 0.34524,
    "c": 0.07858,
    "h": 35.4
  },
  "luminance": 0.03821
}

Semantic roles & 50–950 ramp

primary

#5B281B

secondary

#418191

accent

#C0DE4A

background

#F9F6F5

surface

#F1EBE9

border

#CBC6C5

text

#0D0503

muted

#7E7A78

Preview Lab

Preview with #5B281B

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

Preview Lab → · Contrast checker → · Palette generator →