#5A180C#5A180C

#5A180C is a dark, moderate red. Relative luminance 0.029; OKLCH L 31.7% C 0.099 H 32.6°. Best body text is #FFFFFF at 13.37:1 contrast (WCAG AA passes).

Color values

HEX	#5A180C
RGB	rgb(90, 24, 12)
HSL	hsl(9, 76%, 20%)
HSV	hsv(9, 87%, 35%)
CMYK	cmyk(0%, 73.3%, 86.7%, 64.7%)
CIE-LAB	lab(19.45, 29.54, 24.15)
CIE-LCH	lch(19.45, 38.16, 39.27°)
OKLab	oklab(31.69% 0.0835 0.0533)
OKLCH	oklch(31.69% 0.099 32.6)
XYZ	xyz(4.6100, 2.8542, 0.6559)
Luminance	0.0285 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#5A180C #0C4E5A

analogous

#5A0C27 #5A180C #5A3F0C

triadic

#5A180C #0C5A18 #180C5A

tetradic

#5A180C #275A0C #0C4E5A #3F0C5A

square

#5A180C #275A0C #0C4E5A #3F0C5A

split-complementary

#5A180C #0C5A3F #0C275A

monochromatic

#1B0704 #240A05 #5A180C #902613 #C6351A

Accessibility & contrast

On white

13.37

#5A180C on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.57

#5A180C on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #5A180C

13.37:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##5A180C	#FFFFFF	#000000	##FFFFFF
##5A180C	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)

#2B260A

Deuteranopia (green-blind)

#3C3409

Tritanopia (blue-blind)

#640316

Achromatopsia (no color)

#2F2F2F

Design tokens & code

CSS

--color: #5a180c;
/* rgb */ color: rgb(90, 24, 12);
/* oklch */ color: oklch(31.7% 0.099 32.6);

Tailwind

colors: {
  custom: {
    50: '#8f594c',
    500: '#5a180c',
    950: '#000000',
  },
}

SCSS

$custom: #5a180c;
$custom-light: #8f594c;
$custom-dark: #000000;

JSON

{
  "hex": "#5a180c",
  "rgb": {
    "r": 90,
    "g": 24,
    "b": 12
  },
  "hsl": {
    "h": 9.231,
    "s": 76.471,
    "l": 20
  },
  "oklch": {
    "l": 0.31688,
    "c": 0.09907,
    "h": 32.6
  },
  "luminance": 0.02853
}

Semantic roles & 50–950 ramp

primary

#5A180C

secondary

#2D8595

accent

#D6F335

background

#F9F5F4

surface

#F2E9E7

border

#CCC5C3

text

#0E0401

muted

#7E7977

Preview Lab

Preview with #5A180C

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

Preview Lab → · Contrast checker → · Palette generator →