#5B1511#5B1511

#5B1511 is a dark, moderate red. Relative luminance 0.028; OKLCH L 31.6% C 0.102 H 27.8°. Best body text is #FFFFFF at 13.46:1 contrast (WCAG AA passes).

Color values

HEX	#5B1511
RGB	rgb(91, 21, 17)
HSL	hsl(3, 69%, 21%)
HSV	hsv(3, 81%, 36%)
CMYK	cmyk(0%, 76.9%, 81.3%, 64.3%)
CIE-LAB	lab(19.23, 31.46, 21.37)
CIE-LCH	lch(19.23, 38.03, 34.19°)
OKLab	oklab(31.58% 0.0905 0.0478)
OKLCH	oklch(31.58% 0.102 27.8)
XYZ	xyz(4.6843, 2.8017, 0.8243)
Luminance	0.0280 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#5B1511 #11575B

analogous

#5B1132 #5B1511 #5B3A11

triadic

#5B1511 #115B15 #15115B

tetradic

#5B1511 #325B11 #11575B #3A115B

square

#5B1511 #325B11 #11575B #3A115B

split-complementary

#5B1511 #115B3A #11325B

monochromatic

#1A0605 #270907 #5B1511 #8F211B #C22D24

Accessibility & contrast

On white

13.46

#5B1511 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.56

#5B1511 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #5B1511

13.46:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##5B1511	#FFFFFF	#000000	##FFFFFF
##5B1511	1.00	13.46	1.56	13.46
#FFFFFF	13.46	1.00	21.00	1.00
#000000	1.56	21.00	1.00	21.00
##FFFFFF	13.46	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2A2510

Deuteranopia (green-blind)

#3B340E

Tritanopia (blue-blind)

#650015

Achromatopsia (no color)

#2F2F2F

Design tokens & code

CSS

--color: #5b1511;
/* rgb */ color: rgb(91, 21, 17);
/* oklch */ color: oklch(31.6% 0.102 27.8);

Tailwind

colors: {
  custom: {
    50: '#90584f',
    500: '#5b1511',
    950: '#000000',
  },
}

SCSS

$custom: #5b1511;
$custom-light: #90584f;
$custom-dark: #000000;

JSON

{
  "hex": "#5b1511",
  "rgb": {
    "r": 91,
    "g": 21,
    "b": 17
  },
  "hsl": {
    "h": 3.243,
    "s": 68.519,
    "l": 21.176
  },
  "oklch": {
    "l": 0.31581,
    "c": 0.10234,
    "h": 27.8
  },
  "luminance": 0.02801
}

Semantic roles & 50–950 ramp

primary

#5B1511

secondary

#348F94

accent

#E2EB3C

background

#F9F5F4

surface

#F2E9E7

border

#CCC5C3

text

#0E0302

muted

#7E7878

Preview Lab

Preview with #5B1511

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

Preview Lab → · Contrast checker → · Palette generator →