#240404#240404

#240404 is a very dark, muted red. Relative luminance 0.005; OKLCH L 17.4% C 0.057 H 25.3°. Best body text is #FFFFFF at 19.19:1 contrast (WCAG AA passes).

Color values

HEX	#240404
RGB	rgb(36, 4, 4)
HSL	hsl(0, 80%, 8%)
HSV	hsv(0, 89%, 14%)
CMYK	cmyk(0%, 88.9%, 88.9%, 85.9%)
CIE-LAB	lab(4.25, 14.15, 4.99)
CIE-LCH	lch(4.25, 15.01, 19.41°)
OKLab	oklab(17.44% 0.0512 0.0241)
OKLCH	oklch(17.44% 0.057 25.3)
XYZ	xyz(0.7930, 0.4708, 0.1640)
Luminance	0.0047 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#240404 #042424

analogous

#240414 #240404 #241404

triadic

#240404 #042404 #040424

tetradic

#240404 #142404 #042424 #140424

square

#240404 #142404 #042424 #140424

split-complementary

#240404 #042414 #041424

monochromatic

#1C0303 #1C0303 #240404 #5B0A0A #921010

Accessibility & contrast

On white

19.19

#240404 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.09

#240404 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #240404

19.19:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##240404	#FFFFFF	#000000	##FFFFFF
##240404	1.00	19.19	1.09	19.19
#FFFFFF	19.19	1.00	21.00	1.00
#000000	1.09	21.00	1.00	21.00
##FFFFFF	19.19	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0C0A04

Deuteranopia (green-blind)

#151103

Tritanopia (blue-blind)

#290004

Achromatopsia (no color)

#0F0F0F

Design tokens & code

CSS

--color: #240404;
/* rgb */ color: rgb(36, 4, 4);
/* oklch */ color: oklch(17.4% 0.057 25.3);

Tailwind

colors: {
  custom: {
    50: '#5f4848',
    500: '#240404',
    950: '#000000',
  },
}

SCSS

$custom: #240404;
$custom-light: #5f4848;
$custom-dark: #000000;

JSON

{
  "hex": "#240404",
  "rgb": {
    "r": 36,
    "g": 4,
    "b": 4
  },
  "hsl": {
    "h": 0,
    "s": 80,
    "l": 7.843
  },
  "oklch": {
    "l": 0.17439,
    "c": 0.05658,
    "h": 25.3
  },
  "luminance": 0.00471
}

Semantic roles & 50–950 ramp

primary

#240404

secondary

#1D6767

accent

#F6F631

background

#F5F4F4

surface

#E9E6E6

border

#C5C2C2

text

#050000

muted

#797777

Preview Lab

Preview with #240404

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

Preview Lab → · Contrast checker → · Palette generator →