#581C1C#581C1C

#581C1C is a dark, moderate red. Relative luminance 0.030; OKLCH L 32.1% C 0.089 H 23.6°. Best body text is #FFFFFF at 13.14:1 contrast (WCAG AA passes).

Color values

HEX	#581C1C
RGB	rgb(88, 28, 28)
HSL	hsl(0, 52%, 23%)
HSV	hsv(0, 68%, 35%)
CMYK	cmyk(0%, 68.2%, 68.2%, 65.5%)
CIE-LAB	lab(20.00, 27.68, 14.88)
CIE-LCH	lch(20.00, 31.43, 28.26°)
OKLab	oklab(32.1% 0.0816 0.0356)
OKLCH	oklch(32.1% 0.089 23.6)
XYZ	xyz(4.6498, 2.9897, 1.4306)
Luminance	0.0299 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#581C1C #1C5858

analogous

#581C3A #581C1C #583A1C

triadic

#581C1C #1C581C #1C1C58

tetradic

#581C1C #3A581C #1C5858 #3A1C58

square

#581C1C #3A581C #1C5858 #3A1C58

split-complementary

#581C1C #1C583A #1C3A58

monochromatic

#170707 #2A0D0D #581C1C #862B2B #B53A3A

Accessibility & contrast

On white

13.14

#581C1C on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.60

#581C1C on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #581C1C

13.14:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##581C1C	#FFFFFF	#000000	##FFFFFF
##581C1C	1.00	13.14	1.60	13.14
#FFFFFF	13.14	1.00	21.00	1.00
#000000	1.60	21.00	1.00	21.00
##FFFFFF	13.14	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2C281B

Deuteranopia (green-blind)

#3B351A

Tritanopia (blue-blind)

#610F1D

Achromatopsia (no color)

#303030

Design tokens & code

CSS

--color: #581c1c;
/* rgb */ color: rgb(88, 28, 28);
/* oklch */ color: oklch(32.1% 0.089 23.6);

Tailwind

colors: {
  custom: {
    50: '#8c5c58',
    500: '#581c1c',
    950: '#000000',
  },
}

SCSS

$custom: #581c1c;
$custom-light: #8c5c58;
$custom-dark: #000000;

JSON

{
  "hex": "#581c1c",
  "rgb": {
    "r": 88,
    "g": 28,
    "b": 28
  },
  "hsl": {
    "h": 0,
    "s": 51.724,
    "l": 22.745
  },
  "oklch": {
    "l": 0.32102,
    "c": 0.08897,
    "h": 23.6
  },
  "luminance": 0.02989
}

Semantic roles & 50–950 ramp

primary

#581C1C

secondary

#428E8E

accent

#DBDB4D

background

#F9F5F5

surface

#F1E9E9

border

#CBC5C5

text

#0D0403

muted

#7E7978

Preview Lab

Preview with #581C1C

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

Preview Lab → · Contrast checker → · Palette generator →