#5B1015#5B1015

#5B1015 is a dark, moderate red. Relative luminance 0.026; OKLCH L 31.1% C 0.107 H 22.8°. Best body text is #FFFFFF at 13.73:1 contrast (WCAG AA passes).

Color values

HEX	#5B1015
RGB	rgb(91, 16, 21)
HSL	hsl(356, 70%, 21%)
HSV	hsv(356, 82%, 36%)
CMYK	cmyk(0%, 82.4%, 76.9%, 64.3%)
CIE-LAB	lab(18.58, 33.62, 18.07)
CIE-LCH	lch(18.58, 38.17, 28.26°)
OKLab	oklab(31.12% 0.0983 0.0414)
OKLCH	oklch(31.12% 0.107 22.8)
XYZ	xyz(4.6356, 2.6496, 0.9767)
Luminance	0.0265 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#5B1015 #105B56

analogous

#5B103A #5B1015 #5B3010

triadic

#5B1015 #155B10 #10155B

tetradic

#5B1015 #3A5B10 #105B56 #30105B

square

#5B1015 #3A5B10 #105B56 #30105B

split-complementary

#5B1015 #105B30 #103A5B

monochromatic

#1A0506 #270709 #5B1015 #8F1921 #C3222D

Accessibility & contrast

On white

13.73

#5B1015 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.53

#5B1015 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #5B1015

13.73:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##5B1015	#FFFFFF	#000000	##FFFFFF
##5B1015	1.00	13.73	1.53	13.73
#FFFFFF	13.73	1.00	21.00	1.00
#000000	1.53	21.00	1.00	21.00
##FFFFFF	13.73	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#272314

Deuteranopia (green-blind)

#393312

Tritanopia (blue-blind)

#650013

Achromatopsia (no color)

#2D2D2D

Design tokens & code

CSS

--color: #5b1015;
/* rgb */ color: rgb(91, 16, 21);
/* oklch */ color: oklch(31.1% 0.107 22.8);

Tailwind

colors: {
  custom: {
    50: '#905652',
    500: '#5b1015',
    950: '#000000',
  },
}

SCSS

$custom: #5b1015;
$custom-light: #905652;
$custom-dark: #000000;

JSON

{
  "hex": "#5b1015",
  "rgb": {
    "r": 91,
    "g": 16,
    "b": 21
  },
  "hsl": {
    "h": 356,
    "s": 70.093,
    "l": 20.98
  },
  "oklch": {
    "l": 0.31116,
    "c": 0.10667,
    "h": 22.8
  },
  "luminance": 0.02649
}

Semantic roles & 50–950 ramp

primary

#5B1015

secondary

#33948E

accent

#EDE13B

background

#F9F5F4

surface

#F2E9E7

border

#CCC5C3

text

#0E0302

muted

#7E7878

Preview Lab

Preview with #5B1015

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

Preview Lab → · Contrast checker → · Palette generator →