#04122B#04122B

#04122B is a very dark, muted blue. Relative luminance 0.006; OKLCH L 18.6% C 0.055 H 259.5°. Best body text is #FFFFFF at 18.64:1 contrast (WCAG AA passes).

Color values

HEX	#04122B
RGB	rgb(4, 18, 43)
HSL	hsl(218, 83%, 9%)
HSV	hsv(218, 91%, 17%)
CMYK	cmyk(90.7%, 58.1%, 0%, 83.1%)
CIE-LAB	lab(5.72, 4.13, -18.40)
CIE-LCH	lch(5.72, 18.86, 282.65°)
OKLab	oklab(18.65% -0.01 -0.0541)
OKLCH	oklch(18.65% 0.055 259.5)
XYZ	xyz(0.7023, 0.6328, 2.3702)
Luminance	0.0063 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Midnight Blue (survey)

#020035

ΔE00 7.55

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#04122B #2B1D04

analogous

#04262B #04122B #0A042B

triadic

#04122B #2B0412 #122B04

tetradic

#04122B #2B0426 #2B1D04 #042B0A

square

#04122B #2B0426 #2B1D04 #042B0A

split-complementary

#04122B #2B0A04 #262B04

monochromatic

#030C1C #030C1C #04122B #092963 #0E419B

Accessibility & contrast

On white

18.64

#04122B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.13

#04122B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #04122B

18.64:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##04122B	#FFFFFF	#000000	##FFFFFF
##04122B	1.00	18.64	1.13	18.64
#FFFFFF	18.64	1.00	21.00	1.00
#000000	1.13	21.00	1.00	21.00
##FFFFFF	18.64	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#05152C

Deuteranopia (green-blind)

#00112A

Tritanopia (blue-blind)

#00181C

Achromatopsia (no color)

#131313

Design tokens & code

CSS

--color: #04122b;
/* rgb */ color: rgb(4, 18, 43);
/* oklch */ color: oklch(18.6% 0.055 259.5);

Tailwind

colors: {
  custom: {
    50: '#4a4f64',
    500: '#04122b',
    950: '#000000',
  },
}

SCSS

$custom: #04122b;
$custom-light: #4a4f64;
$custom-dark: #000000;

JSON

{
  "hex": "#04122b",
  "rgb": {
    "r": 4,
    "g": 18,
    "b": 43
  },
  "hsl": {
    "h": 218.462,
    "s": 82.979,
    "l": 9.216
  },
  "oklch": {
    "l": 0.1865,
    "c": 0.05503,
    "h": 259.5
  },
  "luminance": 0.00633
}

Semantic roles & 50–950 ramp

primary

#04122B

secondary

#6E511D

accent

#B12EF9

background

#F4F4F6

surface

#E7E7EB

border

#C3C3C6

text

#010205

muted

#77787A

Preview Lab

Preview with #04122B

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

Preview Lab → · Contrast checker → · Palette generator →