#230404#230404

#230404 is a very dark, muted red. Relative luminance 0.005; OKLCH L 17.2% C 0.055 H 25.1°. Best body text is #FFFFFF at 19.26:1 contrast (WCAG AA passes).

Color values

HEX	#230404
RGB	rgb(35, 4, 4)
HSL	hsl(0, 79%, 8%)
HSV	hsv(0, 89%, 14%)
CMYK	cmyk(0%, 88.6%, 88.6%, 86.3%)
CIE-LAB	lab(4.09, 13.44, 4.73)
CIE-LCH	lch(4.09, 14.25, 19.41°)
OKLab	oklab(17.21% 0.05 0.0234)
OKLCH	oklch(17.21% 0.055 25.1)
XYZ	xyz(0.7586, 0.4530, 0.1623)
Luminance	0.0045 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#230404 #042323

analogous

#230413 #230404 #231304

triadic

#230404 #042304 #040423

tetradic

#230404 #132304 #042323 #130423

square

#230404 #132304 #042323 #130423

split-complementary

#230404 #042313 #041323

monochromatic

#1B0303 #1B0303 #230404 #5A0A0A #911111

Accessibility & contrast

On white

19.26

#230404 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.09

#230404 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #230404

19.26:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##230404	#FFFFFF	#000000	##FFFFFF
##230404	1.00	19.26	1.09	19.26
#FFFFFF	19.26	1.00	21.00	1.00
#000000	1.09	21.00	1.00	21.00
##FFFFFF	19.26	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0C0A04

Deuteranopia (green-blind)

#141103

Tritanopia (blue-blind)

#280004

Achromatopsia (no color)

#0E0E0E

Design tokens & code

CSS

--color: #230404;
/* rgb */ color: rgb(35, 4, 4);
/* oklch */ color: oklch(17.2% 0.055 25.1);

Tailwind

colors: {
  custom: {
    50: '#5e4848',
    500: '#230404',
    950: '#000000',
  },
}

SCSS

$custom: #230404;
$custom-light: #5e4848;
$custom-dark: #000000;

JSON

{
  "hex": "#230404",
  "rgb": {
    "r": 35,
    "g": 4,
    "b": 4
  },
  "hsl": {
    "h": 0,
    "s": 79.487,
    "l": 7.647
  },
  "oklch": {
    "l": 0.1721,
    "c": 0.05522,
    "h": 25.1
  },
  "luminance": 0.00453
}

Semantic roles & 50–950 ramp

primary

#230404

secondary

#1D6666

accent

#F6F632

background

#F5F4F4

surface

#E9E6E6

border

#C5C2C2

text

#040000

muted

#797777

Preview Lab

Preview with #230404

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

Preview Lab → · Contrast checker → · Palette generator →