#581A1B#581A1B

#581A1B is a dark, moderate red. Relative luminance 0.029; OKLCH L 31.8% C 0.092 H 23.1°. Best body text is #FFFFFF at 13.30:1 contrast (WCAG AA passes).

Color values

HEX	#581A1B
RGB	rgb(88, 26, 27)
HSL	hsl(359, 54%, 22%)
HSV	hsv(359, 70%, 35%)
CMYK	cmyk(0%, 70.5%, 69.3%, 65.5%)
CIE-LAB	lab(19.61, 28.61, 15.07)
CIE-LCH	lch(19.61, 32.34, 27.78°)
OKLab	oklab(31.8% 0.0843 0.0359)
OKLCH	oklch(31.8% 0.092 23.1)
XYZ	xyz(4.5922, 2.8933, 1.3533)
Luminance	0.0289 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#581A1B #1A5857

analogous

#581A3A #581A1B #58381A

triadic

#581A1B #1B581A #1A1B58

tetradic

#581A1B #3A581A #1A5857 #381A58

square

#581A1B #3A581A #1A5857 #381A58

split-complementary

#581A1B #1A5838 #1A3A58

monochromatic

#180707 #290C0D #581A1B #872829 #B63638

Accessibility & contrast

On white

13.30

#581A1B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.58

#581A1B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #581A1B

13.30:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##581A1B	#FFFFFF	#000000	##FFFFFF
##581A1B	1.00	13.30	1.58	13.30
#FFFFFF	13.30	1.00	21.00	1.00
#000000	1.58	21.00	1.00	21.00
##FFFFFF	13.30	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2A271B

Deuteranopia (green-blind)

#3A3419

Tritanopia (blue-blind)

#610C1B

Achromatopsia (no color)

#2F2F2F

Design tokens & code

CSS

--color: #581a1b;
/* rgb */ color: rgb(88, 26, 27);
/* oklch */ color: oklch(31.8% 0.092 23.1);

Tailwind

colors: {
  custom: {
    50: '#8c5a57',
    500: '#581a1b',
    950: '#000000',
  },
}

SCSS

$custom: #581a1b;
$custom-light: #8c5a57;
$custom-dark: #000000;

JSON

{
  "hex": "#581a1b",
  "rgb": {
    "r": 88,
    "g": 26,
    "b": 27
  },
  "hsl": {
    "h": 359.032,
    "s": 54.386,
    "l": 22.353
  },
  "oklch": {
    "l": 0.31802,
    "c": 0.0916,
    "h": 23.1
  },
  "luminance": 0.02893
}

Semantic roles & 50–950 ramp

primary

#581A1B

secondary

#408E8D

accent

#DEDB4A

background

#F9F5F5

surface

#F1E9E9

border

#CBC5C5

text

#0D0403

muted

#7E7978

Preview Lab

Preview with #581A1B

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

Preview Lab → · Contrast checker → · Palette generator →