#5A180D#5A180D

#5A180D is a dark, moderate red. Relative luminance 0.029; OKLCH L 31.7% C 0.099 H 32.0°. Best body text is #FFFFFF at 13.37:1 contrast (WCAG AA passes).

Color values

HEX	#5A180D
RGB	rgb(90, 24, 13)
HSL	hsl(9, 75%, 20%)
HSV	hsv(9, 86%, 35%)
CMYK	cmyk(0%, 73.3%, 85.6%, 64.7%)
CIE-LAB	lab(19.46, 29.58, 23.70)
CIE-LCH	lch(19.46, 37.90, 38.70°)
OKLab	oklab(31.7% 0.0838 0.0524)
OKLCH	oklch(31.7% 0.099 32)
XYZ	xyz(4.6163, 2.8567, 0.6890)
Luminance	0.0286 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#5A180D #0D4F5A

analogous

#5A0D29 #5A180D #5A3E0D

triadic

#5A180D #0D5A18 #180D5A

tetradic

#5A180D #295A0D #0D4F5A #3E0D5A

square

#5A180D #295A0D #0D4F5A #3E0D5A

split-complementary

#5A180D #0D5A3E #0D295A

monochromatic

#1B0704 #250A05 #5A180D #8F2615 #C5351C

Accessibility & contrast

On white

13.37

#5A180D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.57

#5A180D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #5A180D

13.37:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##5A180D	#FFFFFF	#000000	##FFFFFF
##5A180D	1.00	13.37	1.57	13.37
#FFFFFF	13.37	1.00	21.00	1.00
#000000	1.57	21.00	1.00	21.00
##FFFFFF	13.37	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2B260B

Deuteranopia (green-blind)

#3C350A

Tritanopia (blue-blind)

#640416

Achromatopsia (no color)

#2F2F2F

Design tokens & code

CSS

--color: #5a180d;
/* rgb */ color: rgb(90, 24, 13);
/* oklch */ color: oklch(31.7% 0.099 32.0);

Tailwind

colors: {
  custom: {
    50: '#8f594d',
    500: '#5a180d',
    950: '#000000',
  },
}

SCSS

$custom: #5a180d;
$custom-light: #8f594d;
$custom-dark: #000000;

JSON

{
  "hex": "#5a180d",
  "rgb": {
    "r": 90,
    "g": 24,
    "b": 13
  },
  "hsl": {
    "h": 8.571,
    "s": 74.757,
    "l": 20.196
  },
  "oklch": {
    "l": 0.31699,
    "c": 0.09886,
    "h": 32
  },
  "luminance": 0.02856
}

Semantic roles & 50–950 ramp

primary

#5A180D

secondary

#2E8694

accent

#D7F136

background

#F9F5F4

surface

#F2E9E7

border

#CCC5C3

text

#0E0401

muted

#7E7977

Preview Lab

Preview with #5A180D

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

Preview Lab → · Contrast checker → · Palette generator →