#5A181A#5A181A

#5A181A is a dark, moderate red. Relative luminance 0.029; OKLCH L 31.9% C 0.097 H 22.9°. Best body text is #FFFFFF at 13.29:1 contrast (WCAG AA passes).

Color values

HEX	#5A181A
RGB	rgb(90, 24, 26)
HSL	hsl(358, 58%, 22%)
HSV	hsv(358, 73%, 35%)
CMYK	cmyk(0%, 73.3%, 71.1%, 64.7%)
CIE-LAB	lab(19.65, 30.26, 15.89)
CIE-LCH	lch(19.65, 34.18, 27.71°)
OKLab	oklab(31.9% 0.089 0.0375)
OKLCH	oklch(31.9% 0.097 22.9)
XYZ	xyz(4.7300, 2.9022, 1.2882)
Luminance	0.0290 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#5A181A #185A58

analogous

#5A183B #5A181A #5A3718

triadic

#5A181A #1A5A18 #181A5A

tetradic

#5A181A #3B5A18 #185A58 #37185A

square

#5A181A #3B5A18 #185A58 #37185A

split-complementary

#5A181A #185A37 #183B5A

monochromatic

#180607 #2A0B0C #5A181A #8A2528 #BB3236

Accessibility & contrast

On white

13.29

#5A181A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.58

#5A181A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #5A181A

13.29:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##5A181A	#FFFFFF	#000000	##FFFFFF
##5A181A	1.00	13.29	1.58	13.29
#FFFFFF	13.29	1.00	21.00	1.00
#000000	1.58	21.00	1.00	21.00
##FFFFFF	13.29	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2A271A

Deuteranopia (green-blind)

#3B3518

Tritanopia (blue-blind)

#630719

Achromatopsia (no color)

#303030

Design tokens & code

CSS

--color: #5a181a;
/* rgb */ color: rgb(90, 24, 26);
/* oklch */ color: oklch(31.9% 0.097 22.9);

Tailwind

colors: {
  custom: {
    50: '#8e5a56',
    500: '#5a181a',
    950: '#000000',
  },
}

SCSS

$custom: #5a181a;
$custom-light: #8e5a56;
$custom-dark: #000000;

JSON

{
  "hex": "#5a181a",
  "rgb": {
    "r": 90,
    "g": 24,
    "b": 26
  },
  "hsl": {
    "h": 358.182,
    "s": 57.895,
    "l": 22.353
  },
  "oklch": {
    "l": 0.31899,
    "c": 0.09656,
    "h": 22.9
  },
  "luminance": 0.02902
}

Semantic roles & 50–950 ramp

primary

#5A181A

secondary

#3D918E

accent

#E1DC47

background

#F9F5F5

surface

#F1E9E9

border

#CBC5C5

text

#0D0403

muted

#7E7978

Preview Lab

Preview with #5A181A

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

Preview Lab → · Contrast checker → · Palette generator →