#540D1B#540D1B

#540D1B is a dark, moderate red. Relative luminance 0.023; OKLCH L 29.5% C 0.102 H 15.6°. Best body text is #FFFFFF at 14.48:1 contrast (WCAG AA passes).

Color values

HEX	#540D1B
RGB	rgb(84, 13, 27)
HSL	hsl(348, 73%, 19%)
HSV	hsv(348, 85%, 33%)
CMYK	cmyk(0%, 84.5%, 67.9%, 67.1%)
CIE-LAB	lab(16.76, 32.69, 11.23)
CIE-LCH	lch(16.76, 34.56, 18.97°)
OKLab	oklab(29.52% 0.0979 0.0273)
OKLCH	oklch(29.52% 0.102 15.6)
XYZ	xyz(3.9983, 2.2524, 1.2609)
Luminance	0.0225 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#540D1B #0D5446

analogous

#540D3F #540D1B #54230D

triadic

#540D1B #1B540D #0D1B54

tetradic

#540D1B #3F540D #0D5446 #230D54

square

#540D1B #3F540D #0D5446 #230D54

split-complementary

#540D1B #0D5423 #0D3F54

monochromatic

#1A0409 #1F050A #540D1B #89152C #BE1D3D

Accessibility & contrast

On white

14.48

#540D1B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.45

#540D1B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #540D1B

14.48:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##540D1B	#FFFFFF	#000000	##FFFFFF
##540D1B	1.00	14.48	1.45	14.48
#FFFFFF	14.48	1.00	21.00	1.00
#000000	1.45	21.00	1.00	21.00
##FFFFFF	14.48	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#21201B

Deuteranopia (green-blind)

#332F19

Tritanopia (blue-blind)

#5D0013

Achromatopsia (no color)

#292929

Design tokens & code

CSS

--color: #540d1b;
/* rgb */ color: rgb(84, 13, 27);
/* oklch */ color: oklch(29.5% 0.102 15.6);

Tailwind

colors: {
  custom: {
    50: '#8a5457',
    500: '#540d1b',
    950: '#000000',
  },
}

SCSS

$custom: #540d1b;
$custom-light: #8a5457;
$custom-dark: #000000;

JSON

{
  "hex": "#540d1b",
  "rgb": {
    "r": 84,
    "g": 13,
    "b": 27
  },
  "hsl": {
    "h": 348.169,
    "s": 73.196,
    "l": 19.02
  },
  "oklch": {
    "l": 0.29523,
    "c": 0.10159,
    "h": 15.6
  },
  "luminance": 0.02252
}

Semantic roles & 50–950 ramp

primary

#540D1B

secondary

#2E8F7C

accent

#F0CC38

background

#F8F5F5

surface

#F0E9E9

border

#CBC5C5

text

#0D0303

muted

#7D7878

Preview Lab

Preview with #540D1B

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

Preview Lab → · Contrast checker → · Palette generator →