#04033A#04033A

#04033A is a very dark, moderate blue. Relative luminance 0.004; OKLCH L 16.9% C 0.101 H 269.4°. Best body text is #FFFFFF at 19.46:1 contrast (WCAG AA passes).

Color values

HEX	#04033A
RGB	rgb(4, 3, 58)
HSL	hsl(241, 90%, 12%)
HSV	hsv(241, 95%, 23%)
CMYK	cmyk(93.1%, 94.8%, 0%, 77.3%)
CIE-LAB	lab(3.58, 19.23, -32.92)
CIE-LCH	lch(3.58, 38.12, 300.29°)
OKLab	oklab(16.91% -0.001 -0.1013)
OKLCH	oklch(16.91% 0.101 269.4)
XYZ	xyz(0.8461, 0.3963, 4.0341)
Luminance	0.0040 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Midnight Blue (survey)

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#04033A #393A03

analogous

#031E3A #04033A #20033A

triadic

#04033A #3A0403 #033A04

tetradic

#04033A #3A031E #393A03 #033A20

square

#04033A #3A031E #393A03 #033A20

split-complementary

#04033A #3A2003 #1E3A03

monochromatic

#02021D #02021D #04033A #080674 #0C09AE

Accessibility & contrast

On white

19.46

#04033A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.08

#04033A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #04033A

19.46:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##04033A	#FFFFFF	#000000	##FFFFFF
##04033A	1.00	19.46	1.08	19.46
#FFFFFF	19.46	1.00	21.00	1.00
#000000	1.08	21.00	1.00	21.00
##FFFFFF	19.46	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00103C

Deuteranopia (green-blind)

#000A39

Tritanopia (blue-blind)

#00141F

Achromatopsia (no color)

#0D0D0D

Design tokens & code

CSS

--color: #04033a;
/* rgb */ color: rgb(4, 3, 58);
/* oklch */ color: oklch(16.9% 0.101 269.4);

Tailwind

colors: {
  custom: {
    50: '#4e4771',
    500: '#04033a',
    950: '#000000',
  },
}

SCSS

$custom: #04033a;
$custom-light: #4e4771;
$custom-dark: #000000;

JSON

{
  "hex": "#04033a",
  "rgb": {
    "r": 4,
    "g": 3,
    "b": 58
  },
  "hsl": {
    "h": 241.091,
    "s": 90.164,
    "l": 11.961
  },
  "oklch": {
    "l": 0.16909,
    "c": 0.10135,
    "h": 269.4
  },
  "luminance": 0.00396
}

Semantic roles & 50–950 ramp

primary

#04033A

secondary

#7B7D1C

accent

#FF29FB

background

#F4F3F6

surface

#E7E5EC

border

#C3C1C7

text

#020008

muted

#78777B

Preview Lab

Preview with #04033A

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

Preview Lab → · Contrast checker → · Palette generator →