#5B1F10#5B1F10

#5B1F10 is a dark, moderate red. Relative luminance 0.032; OKLCH L 32.9% C 0.092 H 35.1°. Best body text is #FFFFFF at 12.74:1 contrast (WCAG AA passes).

Color values

HEX	#5B1F10
RGB	rgb(91, 31, 16)
HSL	hsl(12, 70%, 21%)
HSV	hsv(12, 82%, 36%)
CMYK	cmyk(0%, 65.9%, 82.4%, 64.3%)
CIE-LAB	lab(20.99, 26.63, 23.92)
CIE-LCH	lch(20.99, 35.80, 41.92°)
OKLab	oklab(32.9% 0.0752 0.0529)
OKLCH	oklch(32.9% 0.092 35.1)
XYZ	xyz(4.8984, 3.2422, 0.8580)
Luminance	0.0324 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#5B1F10 #104C5B

analogous

#5B1026 #5B1F10 #5B4410

triadic

#5B1F10 #105B1F #1F105B

tetradic

#5B1F10 #265B10 #104C5B #44105B

square

#5B1F10 #265B10 #104C5B #44105B

split-complementary

#5B1F10 #105B44 #10265B

monochromatic

#1A0905 #270D07 #5B1F10 #8F3119 #C34222

Accessibility & contrast

On white

12.74

#5B1F10 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.65

#5B1F10 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #5B1F10

12.74:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##5B1F10	#FFFFFF	#000000	##FFFFFF
##5B1F10	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)

#302A0E

Deuteranopia (green-blind)

#3F370E

Tritanopia (blue-blind)

#65101C

Achromatopsia (no color)

#323232

Design tokens & code

CSS

--color: #5b1f10;
/* rgb */ color: rgb(91, 31, 16);
/* oklch */ color: oklch(32.9% 0.092 35.1);

Tailwind

colors: {
  custom: {
    50: '#8f5d4f',
    500: '#5b1f10',
    950: '#000000',
  },
}

SCSS

$custom: #5b1f10;
$custom-light: #8f5d4f;
$custom-dark: #000000;

JSON

{
  "hex": "#5b1f10",
  "rgb": {
    "r": 91,
    "g": 31,
    "b": 16
  },
  "hsl": {
    "h": 12,
    "s": 70.093,
    "l": 20.98
  },
  "oklch": {
    "l": 0.32897,
    "c": 0.09199,
    "h": 35.1
  },
  "luminance": 0.03242
}

Semantic roles & 50–950 ramp

primary

#5B1F10

secondary

#338194

accent

#C9ED3B

background

#F9F5F4

surface

#F2E9E7

border

#CCC5C3

text

#0E0402

muted

#7E7978

Preview Lab

Preview with #5B1F10

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

Preview Lab → · Contrast checker → · Palette generator →