#5D181B#5D181B

#5D181B is a dark, moderate red. Relative luminance 0.031; OKLCH L 32.5% C 0.100 H 22.4°. Best body text is #FFFFFF at 13.03:1 contrast (WCAG AA passes).

Color values

HEX	#5D181B
RGB	rgb(93, 24, 27)
HSL	hsl(357, 59%, 23%)
HSV	hsv(357, 74%, 36%)
CMYK	cmyk(0%, 74.2%, 71%, 63.5%)
CIE-LAB	lab(20.28, 31.44, 16.13)
CIE-LCH	lch(20.28, 35.34, 27.16°)
OKLab	oklab(32.5% 0.0925 0.0381)
OKLCH	oklch(32.5% 0.1 22.4)
XYZ	xyz(5.0392, 3.0603, 1.3620)
Luminance	0.0306 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#5D181B #185D5A

analogous

#5D183D #5D181B #5D3718

triadic

#5D181B #1B5D18 #181B5D

tetradic

#5D181B #3D5D18 #185D5A #37185D

square

#5D181B #3D5D18 #185D5A #37185D

split-complementary

#5D181B #185D37 #183D5D

monochromatic

#180607 #2C0B0D #5D181B #8E2529 #BE3137

Accessibility & contrast

On white

13.03

#5D181B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.61

#5D181B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #5D181B

13.03:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##5D181B	#FFFFFF	#000000	##FFFFFF
##5D181B	1.00	13.03	1.61	13.03
#FFFFFF	13.03	1.00	21.00	1.00
#000000	1.61	21.00	1.00	21.00
##FFFFFF	13.03	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2B281B

Deuteranopia (green-blind)

#3C3619

Tritanopia (blue-blind)

#67051A

Achromatopsia (no color)

#313131

Design tokens & code

CSS

--color: #5d181b;
/* rgb */ color: rgb(93, 24, 27);
/* oklch */ color: oklch(32.5% 0.100 22.4);

Tailwind

colors: {
  custom: {
    50: '#905a57',
    500: '#5d181b',
    950: '#000000',
  },
}

SCSS

$custom: #5d181b;
$custom-light: #905a57;
$custom-dark: #000000;

JSON

{
  "hex": "#5d181b",
  "rgb": {
    "r": 93,
    "g": 24,
    "b": 27
  },
  "hsl": {
    "h": 357.391,
    "s": 58.974,
    "l": 22.941
  },
  "oklch": {
    "l": 0.32495,
    "c": 0.10006,
    "h": 22.4
  },
  "luminance": 0.0306
}

Semantic roles & 50–950 ramp

primary

#5D181B

secondary

#3D9390

accent

#E2DB46

background

#F9F5F5

surface

#F2E9E9

border

#CCC5C5

text

#0E0403

muted

#7E7978

Preview Lab

Preview with #5D181B

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

Preview Lab → · Contrast checker → · Palette generator →