#04030A#04030A

#04030A is a very dark, muted blue. Relative luminance 0.001; OKLCH L 10.6% C 0.022 H 291.2°. Best body text is #FFFFFF at 20.54:1 contrast (WCAG AA passes).

Color values

HEX	#04030A
RGB	rgb(4, 3, 10)
HSL	hsl(249, 54%, 3%)
HSV	hsv(249, 70%, 4%)
CMYK	cmyk(60%, 70%, 0%, 96.1%)
CIE-LAB	lab(1.02, 1.24, -2.56)
CIE-LCH	lch(1.02, 2.84, 295.81°)
OKLab	oklab(10.59% 0.0079 -0.0204)
OKLCH	oklch(10.59% 0.022 291.2)
XYZ	xyz(0.1374, 0.1128, 0.3016)
Luminance	0.0011 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#04030A #090A03

analogous

#03060A #04030A #07030A

triadic

#04030A #0A0403 #030A04

tetradic

#04030A #0A0306 #090A03 #030A07

square

#04030A #0A0306 #090A03 #030A07

split-complementary

#04030A #0A0703 #060A03

monochromatic

#090718 #090718 #090718 #171139 #2A1F68

Accessibility & contrast

On white

20.54

#04030A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.02

#04030A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #04030A

20.54:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##04030A	#FFFFFF	#000000	##FFFFFF
##04030A	1.00	20.54	1.02	20.54
#FFFFFF	20.54	1.00	21.00	1.00
#000000	1.02	21.00	1.00	21.00
##FFFFFF	20.54	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#02040A

Deuteranopia (green-blind)

#02040A

Tritanopia (blue-blind)

#030405

Achromatopsia (no color)

#040404

Design tokens & code

CSS

--color: #04030a;
/* rgb */ color: rgb(4, 3, 10);
/* oklch */ color: oklch(10.6% 0.022 291.2);

Tailwind

colors: {
  custom: {
    50: '#48484b',
    500: '#04030a',
    950: '#000000',
  },
}

SCSS

$custom: #04030a;
$custom-light: #48484b;
$custom-dark: #000000;

JSON

{
  "hex": "#04030a",
  "rgb": {
    "r": 4,
    "g": 3,
    "b": 10
  },
  "hsl": {
    "h": 248.571,
    "s": 53.846,
    "l": 2.549
  },
  "oklch": {
    "l": 0.10589,
    "c": 0.02189,
    "h": 291.2
  },
  "luminance": 0.00113
}

Semantic roles & 50–950 ramp

primary

#04030A

secondary

#434821

accent

#DD4BC8

background

#F4F4F4

surface

#E6E6E7

border

#C2C2C3

text

#000001

muted

#777777

Preview Lab

Preview with #04030A

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

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