#581718#581718

#581718 is a dark, moderate red. Relative luminance 0.028; OKLCH L 31.4% C 0.096 H 23.7°. Best body text is #FFFFFF at 13.54:1 contrast (WCAG AA passes).

Color values

HEX	#581718
RGB	rgb(88, 23, 24)
HSL	hsl(359, 59%, 22%)
HSV	hsv(359, 74%, 35%)
CMYK	cmyk(0%, 73.9%, 72.7%, 65.5%)
CIE-LAB	lab(19.03, 29.84, 16.41)
CIE-LCH	lch(19.03, 34.05, 28.80°)
OKLab	oklab(31.35% 0.0875 0.0384)
OKLCH	oklch(31.35% 0.096 23.7)
XYZ	xyz(4.4962, 2.7541, 1.1588)
Luminance	0.0275 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#581718 #175857

analogous

#581739 #581718 #583717

triadic

#581718 #185817 #171858

tetradic

#581718 #395817 #175857 #371758

square

#581718 #395817 #175857 #371758

split-complementary

#581718 #175837 #173958

monochromatic

#180607 #270A0B #581718 #892425 #B93032

Accessibility & contrast

On white

13.54

#581718 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.55

#581718 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #581718

13.54:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##581718	#FFFFFF	#000000	##FFFFFF
##581718	1.00	13.54	1.55	13.54
#FFFFFF	13.54	1.00	21.00	1.00
#000000	1.55	21.00	1.00	21.00
##FFFFFF	13.54	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#292517

Deuteranopia (green-blind)

#393316

Tritanopia (blue-blind)

#610618

Achromatopsia (no color)

#2E2E2E

Design tokens & code

CSS

--color: #581718;
/* rgb */ color: rgb(88, 23, 24);
/* oklch */ color: oklch(31.4% 0.096 23.7);

Tailwind

colors: {
  custom: {
    50: '#8d5954',
    500: '#581718',
    950: '#000000',
  },
}

SCSS

$custom: #581718;
$custom-light: #8d5954;
$custom-dark: #000000;

JSON

{
  "hex": "#581718",
  "rgb": {
    "r": 88,
    "g": 23,
    "b": 24
  },
  "hsl": {
    "h": 359.077,
    "s": 58.559,
    "l": 21.765
  },
  "oklch": {
    "l": 0.3135,
    "c": 0.09554,
    "h": 23.7
  },
  "luminance": 0.02753
}

Semantic roles & 50–950 ramp

primary

#581718

secondary

#3C8F8E

accent

#E2DF46

background

#F9F5F4

surface

#F1E9E7

border

#CBC5C3

text

#0D0402

muted

#7E7978

Preview Lab

Preview with #581718

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

Preview Lab → · Contrast checker → · Palette generator →