#5B1618#5B1618

#5B1618 is a dark, moderate red. Relative luminance 0.029; OKLCH L 31.8% C 0.100 H 23.4°. Best body text is #FFFFFF at 13.35:1 contrast (WCAG AA passes).

Color values

HEX	#5B1618
RGB	rgb(91, 22, 24)
HSL	hsl(358, 61%, 22%)
HSV	hsv(358, 76%, 36%)
CMYK	cmyk(0%, 75.8%, 73.6%, 64.3%)
CIE-LAB	lab(19.49, 31.40, 17.11)
CIE-LCH	lch(19.49, 35.76, 28.59°)
OKLab	oklab(31.81% 0.092 0.0399)
OKLCH	oklch(31.81% 0.1 23.4)
XYZ	xyz(4.7667, 2.8646, 1.1659)
Luminance	0.0286 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#5B1618 #165B59

analogous

#5B163B #5B1618 #5B3716

triadic

#5B1618 #185B16 #16185B

tetradic

#5B1618 #3B5B16 #165B59 #37165B

square

#5B1618 #3B5B16 #165B59 #37165B

split-complementary

#5B1618 #165B37 #163B5B

monochromatic

#190606 #2A0A0B #5B1618 #8C2225 #BE2E32

Accessibility & contrast

On white

13.35

#5B1618 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.57

#5B1618 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #5B1618

13.35:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##5B1618	#FFFFFF	#000000	##FFFFFF
##5B1618	1.00	13.35	1.57	13.35
#FFFFFF	13.35	1.00	21.00	1.00
#000000	1.57	21.00	1.00	21.00
##FFFFFF	13.35	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#292617

Deuteranopia (green-blind)

#3B3516

Tritanopia (blue-blind)

#650217

Achromatopsia (no color)

#2F2F2F

Design tokens & code

CSS

--color: #5b1618;
/* rgb */ color: rgb(91, 22, 24);
/* oklch */ color: oklch(31.8% 0.100 23.4);

Tailwind

colors: {
  custom: {
    50: '#8f5954',
    500: '#5b1618',
    950: '#000000',
  },
}

SCSS

$custom: #5b1618;
$custom-light: #8f5954;
$custom-dark: #000000;

JSON

{
  "hex": "#5b1618",
  "rgb": {
    "r": 91,
    "g": 22,
    "b": 24
  },
  "hsl": {
    "h": 358.261,
    "s": 61.062,
    "l": 22.157
  },
  "oklch": {
    "l": 0.31811,
    "c": 0.10025,
    "h": 23.4
  },
  "luminance": 0.02864
}

Semantic roles & 50–950 ramp

primary

#5B1618

secondary

#3B9290

accent

#E4E044

background

#F9F5F4

surface

#F2E9E7

border

#CCC5C3

text

#0D0402

muted

#7E7978

Preview Lab

Preview with #5B1618

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

Preview Lab → · Contrast checker → · Palette generator →