#04040A#04040A

#04040A is a very dark, near-neutral blue. Relative luminance 0.001; OKLCH L 11.1% C 0.018 H 283.2°. Best body text is #FFFFFF at 20.45:1 contrast (WCAG AA passes).

Color values

HEX	#04040A
RGB	rgb(4, 4, 10)
HSL	hsl(240, 43%, 3%)
HSV	hsv(240, 60%, 4%)
CMYK	cmyk(60%, 60%, 0%, 96.1%)
CIE-LAB	lab(1.22, 0.83, -2.27)
CIE-LCH	lch(1.22, 2.42, 290.18°)
OKLab	oklab(11.15% 0.004 -0.0171)
OKLCH	oklch(11.15% 0.018 283.2)
XYZ	xyz(0.1483, 0.1346, 0.3053)
Luminance	0.0014 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#04040A #0A0A04

analogous

#04070A #04040A #07040A

triadic

#04040A #0A0404 #040A04

tetradic

#04040A #0A0407 #0A0A04 #040A07

square

#04040A #0A0407 #0A0A04 #040A07

split-complementary

#04040A #0A0704 #070A04

monochromatic

#090916 #090916 #090916 #151536 #272761

Accessibility & contrast

On white

20.45

#04040A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.03

#04040A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #04040A

20.45:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##04040A	#FFFFFF	#000000	##FFFFFF
##04040A	1.00	20.45	1.03	20.45
#FFFFFF	20.45	1.00	21.00	1.00
#000000	1.03	21.00	1.00	21.00
##FFFFFF	20.45	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#03050A

Deuteranopia (green-blind)

#03040A

Tritanopia (blue-blind)

#030506

Achromatopsia (no color)

#040404

Design tokens & code

CSS

--color: #04040a;
/* rgb */ color: rgb(4, 4, 10);
/* oklch */ color: oklch(11.1% 0.018 283.2);

Tailwind

colors: {
  custom: {
    50: '#48484b',
    500: '#04040a',
    950: '#000000',
  },
}

SCSS

$custom: #04040a;
$custom-light: #48484b;
$custom-dark: #000000;

JSON

{
  "hex": "#04040a",
  "rgb": {
    "r": 4,
    "g": 4,
    "b": 10
  },
  "hsl": {
    "h": 240,
    "s": 42.857,
    "l": 2.745
  },
  "oklch": {
    "l": 0.11146,
    "c": 0.01754,
    "h": 283.2
  },
  "luminance": 0.00135
}

Semantic roles & 50–950 ramp

primary

#04040A

secondary

#454525

accent

#D355D3

background

#F4F4F4

surface

#E6E6E7

border

#C2C2C3

text

#000001

muted

#777777

Preview Lab

Preview with #04040A

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

Preview Lab → · Contrast checker → · Palette generator →