#5B0F21#5B0F21

#5B0F21 is a dark, moderate red. Relative luminance 0.027; OKLCH L 31.3% C 0.107 H 13.0°. Best body text is #FFFFFF at 13.68:1 contrast (WCAG AA passes).

Color values

HEX	#5B0F21
RGB	rgb(91, 15, 33)
HSL	hsl(346, 72%, 21%)
HSV	hsv(346, 84%, 36%)
CMYK	cmyk(0%, 83.5%, 63.7%, 64.3%)
CIE-LAB	lab(18.70, 34.74, 9.79)
CIE-LCH	lch(18.70, 36.10, 15.74°)
OKLab	oklab(31.28% 0.1047 0.0242)
OKLCH	oklch(31.28% 0.107 13)
XYZ	xyz(4.7602, 2.6763, 1.7045)
Luminance	0.0268 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#5B0F21 #0F5B49

analogous

#5B0F47 #5B0F21 #5B230F

triadic

#5B0F21 #215B0F #0F215B

tetradic

#5B0F21 #475B0F #0F5B49 #230F5B

square

#5B0F21 #475B0F #0F5B49 #230F5B

split-complementary

#5B0F21 #0F5B23 #0F475B

monochromatic

#1A040A #26060E #5B0F21 #901834 #C42047

Accessibility & contrast

On white

13.68

#5B0F21 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.54

#5B0F21 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #5B0F21

13.68:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##5B0F21	#FFFFFF	#000000	##FFFFFF
##5B0F21	1.00	13.68	1.54	13.68
#FFFFFF	13.68	1.00	21.00	1.00
#000000	1.54	21.00	1.00	21.00
##FFFFFF	13.68	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#242421

Deuteranopia (green-blind)

#38331F

Tritanopia (blue-blind)

#640017

Achromatopsia (no color)

#2D2D2D

Design tokens & code

CSS

--color: #5b0f21;
/* rgb */ color: rgb(91, 15, 33);
/* oklch */ color: oklch(31.3% 0.107 13.0);

Tailwind

colors: {
  custom: {
    50: '#8f565b',
    500: '#5b0f21',
    950: '#000000',
  },
}

SCSS

$custom: #5b0f21;
$custom-light: #8f565b;
$custom-dark: #000000;

JSON

{
  "hex": "#5b0f21",
  "rgb": {
    "r": 91,
    "g": 15,
    "b": 33
  },
  "hsl": {
    "h": 345.789,
    "s": 71.698,
    "l": 20.784
  },
  "oklch": {
    "l": 0.3128,
    "c": 0.10748,
    "h": 13
  },
  "luminance": 0.02676
}

Semantic roles & 50–950 ramp

primary

#5B0F21

secondary

#31957D

accent

#EEC439

background

#F9F5F5

surface

#F2E9E9

border

#CCC5C5

text

#0D0304

muted

#7E7879

Preview Lab

Preview with #5B0F21

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

Preview Lab → · Contrast checker → · Palette generator →