#540F1B#540F1B

#540F1B is a dark, moderate red. Relative luminance 0.023; OKLCH L 29.7% C 0.100 H 16.4°. Best body text is #FFFFFF at 14.37:1 contrast (WCAG AA passes).

Color values

HEX	#540F1B
RGB	rgb(84, 15, 27)
HSL	hsl(350, 70%, 19%)
HSV	hsv(350, 82%, 33%)
CMYK	cmyk(0%, 82.1%, 67.9%, 67.1%)
CIE-LAB	lab(17.02, 31.96, 11.57)
CIE-LCH	lch(17.02, 33.99, 19.90°)
OKLab	oklab(29.72% 0.0955 0.028)
OKLCH	oklch(29.72% 0.1 16.4)
XYZ	xyz(4.0252, 2.3062, 1.2699)
Luminance	0.0231 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#540F1B #0F5448

analogous

#540F3E #540F1B #54260F

triadic

#540F1B #1B540F #0F1B54

tetradic

#540F1B #3E540F #0F5448 #260F54

square

#540F1B #3E540F #0F5448 #260F54

split-complementary

#540F1B #0F5426 #0F3E54

monochromatic

#1A0508 #20060A #540F1B #88182C #BC223C

Accessibility & contrast

On white

14.37

#540F1B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.46

#540F1B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #540F1B

14.37:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##540F1B	#FFFFFF	#000000	##FFFFFF
##540F1B	1.00	14.37	1.46	14.37
#FFFFFF	14.37	1.00	21.00	1.00
#000000	1.46	21.00	1.00	21.00
##FFFFFF	14.37	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#22211B

Deuteranopia (green-blind)

#342F19

Tritanopia (blue-blind)

#5D0014

Achromatopsia (no color)

#2A2A2A

Design tokens & code

CSS

--color: #540f1b;
/* rgb */ color: rgb(84, 15, 27);
/* oklch */ color: oklch(29.7% 0.100 16.4);

Tailwind

colors: {
  custom: {
    50: '#895457',
    500: '#540f1b',
    950: '#000000',
  },
}

SCSS

$custom: #540f1b;
$custom-light: #895457;
$custom-dark: #000000;

JSON

{
  "hex": "#540f1b",
  "rgb": {
    "r": 84,
    "g": 15,
    "b": 27
  },
  "hsl": {
    "h": 349.565,
    "s": 69.697,
    "l": 19.412
  },
  "oklch": {
    "l": 0.29715,
    "c": 0.09956,
    "h": 16.4
  },
  "luminance": 0.02306
}

Semantic roles & 50–950 ramp

primary

#540F1B

secondary

#318E7E

accent

#EDCE3B

background

#F8F5F5

surface

#F0E9E9

border

#CBC5C5

text

#0D0303

muted

#7D7878

Preview Lab

Preview with #540F1B

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

Preview Lab → · Contrast checker → · Palette generator →