#5A181D#5A181D

#5A181D is a dark, moderate red. Relative luminance 0.029; OKLCH L 32.0% C 0.096 H 20.3°. Best body text is #FFFFFF at 13.26:1 contrast (WCAG AA passes).

Color values

HEX	#5A181D
RGB	rgb(90, 24, 29)
HSL	hsl(355, 58%, 22%)
HSV	hsv(355, 73%, 35%)
CMYK	cmyk(0%, 73.3%, 67.8%, 64.7%)
CIE-LAB	lab(19.71, 30.47, 13.89)
CIE-LCH	lch(19.71, 33.48, 24.52°)
OKLab	oklab(31.96% 0.0903 0.0334)
OKLCH	oklch(31.96% 0.096 20.3)
XYZ	xyz(4.7653, 2.9163, 1.4741)
Luminance	0.0292 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#5A181D #185A55

analogous

#5A183E #5A181D #5A3418

triadic

#5A181D #1D5A18 #181D5A

tetradic

#5A181D #3E5A18 #185A55 #34185A

square

#5A181D #3E5A18 #185A55 #34185A

split-complementary

#5A181D #185A34 #183E5A

monochromatic

#180608 #2A0B0D #5A181D #8A252D #BB323C

Accessibility & contrast

On white

13.26

#5A181D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.58

#5A181D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #5A181D

13.26:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##5A181D	#FFFFFF	#000000	##FFFFFF
##5A181D	1.00	13.26	1.58	13.26
#FFFFFF	13.26	1.00	21.00	1.00
#000000	1.58	21.00	1.00	21.00
##FFFFFF	13.26	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2A271D

Deuteranopia (green-blind)

#3A351B

Tritanopia (blue-blind)

#63081A

Achromatopsia (no color)

#303030

Design tokens & code

CSS

--color: #5a181d;
/* rgb */ color: rgb(90, 24, 29);
/* oklch */ color: oklch(32.0% 0.096 20.3);

Tailwind

colors: {
  custom: {
    50: '#8e5a58',
    500: '#5a181d',
    950: '#000000',
  },
}

SCSS

$custom: #5a181d;
$custom-light: #8e5a58;
$custom-dark: #000000;

JSON

{
  "hex": "#5a181d",
  "rgb": {
    "r": 90,
    "g": 24,
    "b": 29
  },
  "hsl": {
    "h": 355.455,
    "s": 57.895,
    "l": 22.353
  },
  "oklch": {
    "l": 0.31961,
    "c": 0.09629,
    "h": 20.3
  },
  "luminance": 0.02916
}

Semantic roles & 50–950 ramp

primary

#5A181D

secondary

#3D918A

accent

#E1D547

background

#F9F5F5

surface

#F1E9E9

border

#CBC5C5

text

#0D0403

muted

#7E7978

Preview Lab

Preview with #5A181D

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

Preview Lab → · Contrast checker → · Palette generator →