#581018#581018

#581018 is a dark, moderate red. Relative luminance 0.025; OKLCH L 30.6% C 0.103 H 20.2°. Best body text is #FFFFFF at 13.98:1 contrast (WCAG AA passes).

Color values

HEX	#581018
RGB	rgb(88, 16, 24)
HSL	hsl(353, 69%, 20%)
HSV	hsv(353, 82%, 35%)
CMYK	cmyk(0%, 81.8%, 72.7%, 65.5%)
CIE-LAB	lab(17.97, 32.76, 15.10)
CIE-LCH	lch(17.97, 36.07, 24.74°)
OKLab	oklab(30.56% 0.0968 0.0355)
OKLCH	oklch(30.56% 0.103 20.2)
XYZ	xyz(4.3751, 2.5119, 1.1184)
Luminance	0.0251 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#581018 #105850

analogous

#58103C #581018 #582C10

triadic

#581018 #185810 #101858

tetradic

#581018 #3C5810 #105850 #2C1058

square

#581018 #3C5810 #105850 #2C1058

split-complementary

#581018 #10582C #103C58

monochromatic

#1A0507 #24070A #581018 #8C1926 #C02334

Accessibility & contrast

On white

13.98

#581018 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.50

#581018 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #581018

13.98:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##581018	#FFFFFF	#000000	##FFFFFF
##581018	1.00	13.98	1.50	13.98
#FFFFFF	13.98	1.00	21.00	1.00
#000000	1.50	21.00	1.00	21.00
##FFFFFF	13.98	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#252218

Deuteranopia (green-blind)

#373116

Tritanopia (blue-blind)

#610014

Achromatopsia (no color)

#2C2C2C

Design tokens & code

CSS

--color: #581018;
/* rgb */ color: rgb(88, 16, 24);
/* oklch */ color: oklch(30.6% 0.103 20.2);

Tailwind

colors: {
  custom: {
    50: '#8d5554',
    500: '#581018',
    950: '#000000',
  },
}

SCSS

$custom: #581018;
$custom-light: #8d5554;
$custom-dark: #000000;

JSON

{
  "hex": "#581018",
  "rgb": {
    "r": 88,
    "g": 16,
    "b": 24
  },
  "hsl": {
    "h": 353.333,
    "s": 69.231,
    "l": 20.392
  },
  "oklch": {
    "l": 0.30561,
    "c": 0.10308,
    "h": 20.2
  },
  "luminance": 0.02511
}

Semantic roles & 50–950 ramp

primary

#581018

secondary

#329187

accent

#ECD83C

background

#F9F5F4

surface

#F1E9E7

border

#CBC5C3

text

#0D0302

muted

#7E7878

Preview Lab

Preview with #581018

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

Preview Lab → · Contrast checker → · Palette generator →