#240004#240004

#240004 is a very dark, moderate red. Relative luminance 0.004; OKLCH L 16.5% C 0.066 H 18.4°. Best body text is #FFFFFF at 19.50:1 contrast (WCAG AA passes).

Color values

HEX	#240004
RGB	rgb(36, 0, 4)
HSL	hsl(353, 100%, 7%)
HSV	hsv(353, 100%, 14%)
CMYK	cmyk(0%, 100%, 88.9%, 85.9%)
CIE-LAB	lab(3.47, 15.76, 3.84)
CIE-LCH	lch(3.47, 16.22, 13.70°)
OKLab	oklab(16.49% 0.0627 0.0208)
OKLCH	oklch(16.49% 0.066 18.4)
XYZ	xyz(0.7496, 0.3840, 0.1495)
Luminance	0.0038 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#240004 #002420

analogous

#240016 #240004 #240E00

triadic

#240004 #042400 #000424

tetradic

#240004 #162400 #002420 #0E0024

square

#240004 #162400 #002420 #0E0024

split-complementary

#240004 #00240E #001624

monochromatic

#1F0003 #1F0003 #240004 #61000B #9E0012

Accessibility & contrast

On white

19.50

#240004 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.08

#240004 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #240004

19.50:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##240004	#FFFFFF	#000000	##FFFFFF
##240004	1.00	19.50	1.08	19.50
#FFFFFF	19.50	1.00	21.00	1.00
#000000	1.08	21.00	1.00	21.00
##FFFFFF	19.50	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#080704

Deuteranopia (green-blind)

#121003

Tritanopia (blue-blind)

#290001

Achromatopsia (no color)

#0C0C0C

Design tokens & code

CSS

--color: #240004;
/* rgb */ color: rgb(36, 0, 4);
/* oklch */ color: oklch(16.5% 0.066 18.4);

Tailwind

colors: {
  custom: {
    50: '#5f4648',
    500: '#240004',
    950: '#000000',
  },
}

SCSS

$custom: #240004;
$custom-light: #5f4648;
$custom-dark: #000000;

JSON

{
  "hex": "#240004",
  "rgb": {
    "r": 36,
    "g": 0,
    "b": 4
  },
  "hsl": {
    "h": 353.333,
    "s": 100,
    "l": 7.059
  },
  "oklch": {
    "l": 0.16494,
    "c": 0.0661,
    "h": 18.4
  },
  "luminance": 0.00384
}

Semantic roles & 50–950 ramp

primary

#240004

secondary

#136D63

accent

#FFE729

background

#F5F3F4

surface

#E9E5E6

border

#C5C1C2

text

#050000

muted

#797777

Preview Lab

Preview with #240004

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

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