#5B1F0F#5B1F0F

#5B1F0F is a dark, moderate red. Relative luminance 0.032; OKLCH L 32.9% C 0.092 H 35.7°. Best body text is #FFFFFF at 12.74:1 contrast (WCAG AA passes).

Color values

HEX	#5B1F0F
RGB	rgb(91, 31, 15)
HSL	hsl(13, 72%, 21%)
HSV	hsv(13, 84%, 36%)
CMYK	cmyk(0%, 65.9%, 83.5%, 64.3%)
CIE-LAB	lab(20.98, 26.59, 24.45)
CIE-LCH	lch(20.98, 36.12, 42.60°)
OKLab	oklab(32.89% 0.0749 0.0539)
OKLCH	oklch(32.89% 0.092 35.7)
XYZ	xyz(4.8911, 3.2393, 0.8195)
Luminance	0.0324 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#5B1F0F #0F4B5B

analogous

#5B0F25 #5B1F0F #5B450F

triadic

#5B1F0F #0F5B1F #1F0F5B

tetradic

#5B1F0F #255B0F #0F4B5B #450F5B

square

#5B1F0F #255B0F #0F4B5B #450F5B

split-complementary

#5B1F0F #0F5B45 #0F255B

monochromatic

#1A0904 #260D06 #5B1F0F #903118 #C44320

Accessibility & contrast

On white

12.74

#5B1F0F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.65

#5B1F0F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #5B1F0F

12.74:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##5B1F0F	#FFFFFF	#000000	##FFFFFF
##5B1F0F	1.00	12.74	1.65	12.74
#FFFFFF	12.74	1.00	21.00	1.00
#000000	1.65	21.00	1.00	21.00
##FFFFFF	12.74	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#302A0D

Deuteranopia (green-blind)

#3F370D

Tritanopia (blue-blind)

#65101C

Achromatopsia (no color)

#323232

Design tokens & code

CSS

--color: #5b1f0f;
/* rgb */ color: rgb(91, 31, 15);
/* oklch */ color: oklch(32.9% 0.092 35.7);

Tailwind

colors: {
  custom: {
    50: '#8f5d4e',
    500: '#5b1f0f',
    950: '#000000',
  },
}

SCSS

$custom: #5b1f0f;
$custom-light: #8f5d4e;
$custom-dark: #000000;

JSON

{
  "hex": "#5b1f0f",
  "rgb": {
    "r": 91,
    "g": 31,
    "b": 15
  },
  "hsl": {
    "h": 12.632,
    "s": 71.698,
    "l": 20.784
  },
  "oklch": {
    "l": 0.32885,
    "c": 0.09226,
    "h": 35.7
  },
  "luminance": 0.03239
}

Semantic roles & 50–950 ramp

primary

#5B1F0F

secondary

#318095

accent

#C8EE39

background

#F9F5F4

surface

#F2E9E7

border

#CCC5C3

text

#0E0401

muted

#7E7977

Preview Lab

Preview with #5B1F0F

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

Preview Lab → · Contrast checker → · Palette generator →