#5B151E#5B151E

#5B151E is a dark, moderate red. Relative luminance 0.029; OKLCH L 31.8% C 0.101 H 18.0°. Best body text is #FFFFFF at 13.37:1 contrast (WCAG AA passes).

Color values

HEX	#5B151E
RGB	rgb(91, 21, 30)
HSL	hsl(352, 63%, 22%)
HSV	hsv(352, 77%, 36%)
CMYK	cmyk(0%, 76.9%, 67%, 64.3%)
CIE-LAB	lab(19.45, 32.22, 12.91)
CIE-LCH	lch(19.45, 34.71, 21.84°)
OKLab	oklab(31.82% 0.096 0.0312)
OKLCH	oklch(31.82% 0.101 18)
XYZ	xyz(4.8174, 2.8549, 1.5254)
Luminance	0.0285 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#5B151E #155B52

analogous

#5B1541 #5B151E #5B2F15

triadic

#5B151E #1E5B15 #151E5B

tetradic

#5B151E #415B15 #155B52 #2F155B

square

#5B151E #415B15 #155B52 #2F155B

split-complementary

#5B151E #155B2F #15415B

monochromatic

#190608 #290A0E #5B151E #8D202E #BE2C3F

Accessibility & contrast

On white

13.37

#5B151E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.57

#5B151E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #5B151E

13.37:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##5B151E	#FFFFFF	#000000	##FFFFFF
##5B151E	1.00	13.37	1.57	13.37
#FFFFFF	13.37	1.00	21.00	1.00
#000000	1.57	21.00	1.00	21.00
##FFFFFF	13.37	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#28261E

Deuteranopia (green-blind)

#3A341C

Tritanopia (blue-blind)

#640219

Achromatopsia (no color)

#2F2F2F

Design tokens & code

CSS

--color: #5b151e;
/* rgb */ color: rgb(91, 21, 30);
/* oklch */ color: oklch(31.8% 0.101 18.0);

Tailwind

colors: {
  custom: {
    50: '#8f5859',
    500: '#5b151e',
    950: '#000000',
  },
}

SCSS

$custom: #5b151e;
$custom-light: #8f5859;
$custom-dark: #000000;

JSON

{
  "hex": "#5b151e",
  "rgb": {
    "r": 91,
    "g": 21,
    "b": 30
  },
  "hsl": {
    "h": 352.286,
    "s": 62.5,
    "l": 21.961
  },
  "oklch": {
    "l": 0.31818,
    "c": 0.10093,
    "h": 18
  },
  "luminance": 0.02854
}

Semantic roles & 50–950 ramp

primary

#5B151E

secondary

#399287

accent

#E6D142

background

#F9F5F5

surface

#F2E9E9

border

#CCC5C5

text

#0D0403

muted

#7E7978

Preview Lab

Preview with #5B151E

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

Preview Lab → · Contrast checker → · Palette generator →