#5B101A#5B101A

#5B101A is a dark, moderate red. Relative luminance 0.027; OKLCH L 31.2% C 0.106 H 19.1°. Best body text is #FFFFFF at 13.69:1 contrast (WCAG AA passes).

Color values

HEX	#5B101A
RGB	rgb(91, 16, 26)
HSL	hsl(352, 70%, 21%)
HSV	hsv(352, 82%, 36%)
CMYK	cmyk(0%, 82.4%, 71.4%, 64.3%)
CIE-LAB	lab(18.67, 33.91, 14.71)
CIE-LCH	lch(18.67, 36.96, 23.46°)
OKLab	oklab(31.21% 0.1005 0.0348)
OKLCH	oklch(31.21% 0.106 19.1)
XYZ	xyz(4.6866, 2.6700, 1.2457)
Luminance	0.0267 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#5B101A #105B51

analogous

#5B103F #5B101A #5B2B10

triadic

#5B101A #1A5B10 #101A5B

tetradic

#5B101A #3F5B10 #105B51 #2B105B

square

#5B101A #3F5B10 #105B51 #2B105B

split-complementary

#5B101A #105B2B #103F5B

monochromatic

#1A0507 #27070B #5B101A #8F1929 #C32238

Accessibility & contrast

On white

13.69

#5B101A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.53

#5B101A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #5B101A

13.69:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##5B101A	#FFFFFF	#000000	##FFFFFF
##5B101A	1.00	13.69	1.53	13.69
#FFFFFF	13.69	1.00	21.00	1.00
#000000	1.53	21.00	1.00	21.00
##FFFFFF	13.69	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#26231A

Deuteranopia (green-blind)

#393318

Tritanopia (blue-blind)

#650014

Achromatopsia (no color)

#2D2D2D

Design tokens & code

CSS

--color: #5b101a;
/* rgb */ color: rgb(91, 16, 26);
/* oklch */ color: oklch(31.2% 0.106 19.1);

Tailwind

colors: {
  custom: {
    50: '#8f5656',
    500: '#5b101a',
    950: '#000000',
  },
}

SCSS

$custom: #5b101a;
$custom-light: #8f5656;
$custom-dark: #000000;

JSON

{
  "hex": "#5b101a",
  "rgb": {
    "r": 91,
    "g": 16,
    "b": 26
  },
  "hsl": {
    "h": 352,
    "s": 70.093,
    "l": 20.98
  },
  "oklch": {
    "l": 0.3121,
    "c": 0.10632,
    "h": 19.1
  },
  "luminance": 0.02669
}

Semantic roles & 50–950 ramp

primary

#5B101A

secondary

#339487

accent

#EDD53B

background

#F9F5F5

surface

#F2E9E9

border

#CCC5C5

text

#0E0303

muted

#7E7878

Preview Lab

Preview with #5B101A

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

Preview Lab → · Contrast checker → · Palette generator →