#581B1A#581B1A

#581B1A is a dark, moderate red. Relative luminance 0.029; OKLCH L 31.9% C 0.091 H 24.6°. Best body text is #FFFFFF at 13.24:1 contrast (WCAG AA passes).

Color values

HEX	#581B1A
RGB	rgb(88, 27, 26)
HSL	hsl(1, 54%, 22%)
HSV	hsv(1, 70%, 35%)
CMYK	cmyk(0%, 69.3%, 70.5%, 65.5%)
CIE-LAB	lab(19.78, 28.05, 15.96)
CIE-LCH	lch(19.78, 32.27, 29.65°)
OKLab	oklab(31.92% 0.0823 0.0377)
OKLCH	oklch(31.92% 0.091 24.6)
XYZ	xyz(4.6033, 2.9338, 1.3010)
Luminance	0.0293 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#581B1A #1A5758

analogous

#581A38 #581B1A #583A1A

triadic

#581B1A #1A581B #1B1A58

tetradic

#581B1A #38581A #1A5758 #3A1A58

square

#581B1A #38581A #1A5758 #3A1A58

split-complementary

#581B1A #1A583A #1A3858

monochromatic

#180707 #290D0C #581B1A #872928 #B63836

Accessibility & contrast

On white

13.24

#581B1A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.59

#581B1A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #581B1A

13.24:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##581B1A	#FFFFFF	#000000	##FFFFFF
##581B1A	1.00	13.24	1.59	13.24
#FFFFFF	13.24	1.00	21.00	1.00
#000000	1.59	21.00	1.00	21.00
##FFFFFF	13.24	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2B2819

Deuteranopia (green-blind)

#3A3518

Tritanopia (blue-blind)

#610D1B

Achromatopsia (no color)

#303030

Design tokens & code

CSS

--color: #581b1a;
/* rgb */ color: rgb(88, 27, 26);
/* oklch */ color: oklch(31.9% 0.091 24.6);

Tailwind

colors: {
  custom: {
    50: '#8c5b56',
    500: '#581b1a',
    950: '#000000',
  },
}

SCSS

$custom: #581b1a;
$custom-light: #8c5b56;
$custom-dark: #000000;

JSON

{
  "hex": "#581b1a",
  "rgb": {
    "r": 88,
    "g": 27,
    "b": 26
  },
  "hsl": {
    "h": 0.968,
    "s": 54.386,
    "l": 22.353
  },
  "oklch": {
    "l": 0.3192,
    "c": 0.09051,
    "h": 24.6
  },
  "luminance": 0.02933
}

Semantic roles & 50–950 ramp

primary

#581B1A

secondary

#408D8E

accent

#DBDE4A

background

#F9F5F5

surface

#F1E9E9

border

#CBC5C5

text

#0D0403

muted

#7E7978

Preview Lab

Preview with #581B1A

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

Preview Lab → · Contrast checker → · Palette generator →