#240104#240104

#240104 is a very dark, moderate red. Relative luminance 0.004; OKLCH L 16.7% C 0.063 H 20.0°. Best body text is #FFFFFF at 19.42:1 contrast (WCAG AA passes).

Color values

HEX	#240104
RGB	rgb(36, 1, 4)
HSL	hsl(355, 95%, 7%)
HSV	hsv(355, 97%, 14%)
CMYK	cmyk(0%, 97.2%, 88.9%, 85.9%)
CIE-LAB	lab(3.66, 15.35, 4.13)
CIE-LCH	lch(3.66, 15.90, 15.05°)
OKLab	oklab(16.74% 0.0596 0.0217)
OKLCH	oklch(16.74% 0.063 20)
XYZ	xyz(0.7604, 0.4057, 0.1531)
Luminance	0.0041 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#240104 #012421

analogous

#240116 #240104 #241001

triadic

#240104 #042401 #010424

tetradic

#240104 #162401 #012421 #100124

square

#240104 #162401 #012421 #100124

split-complementary

#240104 #012410 #011624

monochromatic

#1E0103 #1E0103 #240104 #60030B #9B0411

Accessibility & contrast

On white

19.42

#240104 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.08

#240104 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #240104

19.42:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##240104	#FFFFFF	#000000	##FFFFFF
##240104	1.00	19.42	1.08	19.42
#FFFFFF	19.42	1.00	21.00	1.00
#000000	1.08	21.00	1.00	21.00
##FFFFFF	19.42	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#090804

Deuteranopia (green-blind)

#131003

Tritanopia (blue-blind)

#290002

Achromatopsia (no color)

#0D0D0D

Design tokens & code

CSS

--color: #240104;
/* rgb */ color: rgb(36, 1, 4);
/* oklch */ color: oklch(16.7% 0.063 20.0);

Tailwind

colors: {
  custom: {
    50: '#5f4648',
    500: '#240104',
    950: '#000000',
  },
}

SCSS

$custom: #240104;
$custom-light: #5f4648;
$custom-dark: #000000;

JSON

{
  "hex": "#240104",
  "rgb": {
    "r": 36,
    "g": 1,
    "b": 4
  },
  "hsl": {
    "h": 354.857,
    "s": 94.595,
    "l": 7.255
  },
  "oklch": {
    "l": 0.16741,
    "c": 0.06344,
    "h": 20
  },
  "luminance": 0.00406
}

Semantic roles & 50–950 ramp

primary

#240104

secondary

#166B64

accent

#FFED29

background

#F5F3F4

surface

#E9E5E6

border

#C5C1C2

text

#050000

muted

#797777

Preview Lab

Preview with #240104

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

Preview Lab → · Contrast checker → · Palette generator →