#04012A#04012A

#04012A is a very dark, moderate blue. Relative luminance 0.002; OKLCH L 13.9% C 0.083 H 273.6°. Best body text is #FFFFFF at 20.13:1 contrast (WCAG AA passes).

Color values

HEX	#04012A
RGB	rgb(4, 1, 42)
HSL	hsl(244, 95%, 8%)
HSV	hsv(244, 98%, 16%)
CMYK	cmyk(90.5%, 97.6%, 0%, 83.5%)
CIE-LAB	lab(1.94, 11.25, -23.60)
CIE-LCH	lch(1.94, 26.14, 295.50°)
OKLab	oklab(13.87% 0.0053 -0.083)
OKLCH	oklch(13.87% 0.083 273.6)
XYZ	xyz(0.4787, 0.2146, 2.2062)
Luminance	0.0022 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Midnight Blue (survey)

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#04012A #272A01

analogous

#01122A #04012A #18012A

triadic

#04012A #2A0401 #012A04

tetradic

#04012A #2A0112 #272A01 #012A18

square

#04012A #2A0112 #272A01 #012A18

split-complementary

#04012A #2A1801 #122A01

monochromatic

#03011E #03011E #04012A #0A0266 #0F04A2

Accessibility & contrast

On white

20.13

#04012A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.04

#04012A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #04012A

20.13:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##04012A	#FFFFFF	#000000	##FFFFFF
##04012A	1.00	20.13	1.04	20.13
#FFFFFF	20.13	1.00	21.00	1.00
#000000	1.04	21.00	1.00	21.00
##FFFFFF	20.13	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00092B

Deuteranopia (green-blind)

#000529

Tritanopia (blue-blind)

#000C15

Achromatopsia (no color)

#070707

Design tokens & code

CSS

--color: #04012a;
/* rgb */ color: rgb(4, 1, 42);
/* oklch */ color: oklch(13.9% 0.083 273.6);

Tailwind

colors: {
  custom: {
    50: '#494764',
    500: '#04012a',
    950: '#000000',
  },
}

SCSS

$custom: #04012a;
$custom-light: #494764;
$custom-dark: #000000;

JSON

{
  "hex": "#04012a",
  "rgb": {
    "r": 4,
    "g": 1,
    "b": 42
  },
  "hsl": {
    "h": 244.39,
    "s": 95.349,
    "l": 8.431
  },
  "oklch": {
    "l": 0.13868,
    "c": 0.08317,
    "h": 273.6
  },
  "luminance": 0.00215
}

Semantic roles & 50–950 ramp

primary

#04012A

secondary

#6A7016

accent

#FF29EF

background

#F4F3F6

surface

#E7E5EB

border

#C3C1C6

text

#010005

muted

#77777A

Preview Lab

Preview with #04012A

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

Preview Lab → · Contrast checker → · Palette generator →