#581C1F#581C1F

#581C1F is a dark, moderate red. Relative luminance 0.030; OKLCH L 32.2% C 0.089 H 20.7°. Best body text is #FFFFFF at 13.12:1 contrast (WCAG AA passes).

Color values

HEX	#581C1F
RGB	rgb(88, 28, 31)
HSL	hsl(357, 52%, 23%)
HSV	hsv(357, 68%, 35%)
CMYK	cmyk(0%, 68.2%, 64.8%, 65.5%)
CIE-LAB	lab(20.06, 27.92, 12.89)
CIE-LCH	lch(20.06, 30.75, 24.79°)
OKLab	oklab(32.17% 0.0829 0.0313)
OKLCH	oklch(32.17% 0.089 20.7)
XYZ	xyz(4.6875, 3.0048, 1.6292)
Luminance	0.0300 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#581C1F #1C5855

analogous

#581C3D #581C1F #58371C

triadic

#581C1F #1F581C #1C1F58

tetradic

#581C1F #3D581C #1C5855 #371C58

square

#581C1F #3D581C #1C5855 #371C58

split-complementary

#581C1F #1C5837 #1C3D58

monochromatic

#170708 #2A0D0F #581C1F #862B2F #B53A40

Accessibility & contrast

On white

13.12

#581C1F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.60

#581C1F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #581C1F

13.12:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##581C1F	#FFFFFF	#000000	##FFFFFF
##581C1F	1.00	13.12	1.60	13.12
#FFFFFF	13.12	1.00	21.00	1.00
#000000	1.60	21.00	1.00	21.00
##FFFFFF	13.12	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2B281F

Deuteranopia (green-blind)

#3A351D

Tritanopia (blue-blind)

#61101E

Achromatopsia (no color)

#303030

Design tokens & code

CSS

--color: #581c1f;
/* rgb */ color: rgb(88, 28, 31);
/* oklch */ color: oklch(32.2% 0.089 20.7);

Tailwind

colors: {
  custom: {
    50: '#8c5c5a',
    500: '#581c1f',
    950: '#000000',
  },
}

SCSS

$custom: #581c1f;
$custom-light: #8c5c5a;
$custom-dark: #000000;

JSON

{
  "hex": "#581c1f",
  "rgb": {
    "r": 88,
    "g": 28,
    "b": 31
  },
  "hsl": {
    "h": 357,
    "s": 51.724,
    "l": 22.745
  },
  "oklch": {
    "l": 0.32167,
    "c": 0.08864,
    "h": 20.7
  },
  "luminance": 0.03004
}

Semantic roles & 50–950 ramp

primary

#581C1F

secondary

#428E8A

accent

#DBD44D

background

#F9F5F5

surface

#F1E9E9

border

#CBC5C5

text

#0D0403

muted

#7E7978

Preview Lab

Preview with #581C1F

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

Preview Lab → · Contrast checker → · Palette generator →