#040333#040333

#040333 is a very dark, moderate blue. Relative luminance 0.003; OKLCH L 15.9% C 0.092 H 270.6°. Best body text is #FFFFFF at 19.70:1 contrast (WCAG AA passes).

Color values

HEX	#040333
RGB	rgb(4, 3, 51)
HSL	hsl(241, 89%, 11%)
HSV	hsv(241, 94%, 20%)
CMYK	cmyk(92.2%, 94.1%, 0%, 80%)
CIE-LAB	lab(2.98, 15.01, -28.73)
CIE-LCH	lch(2.98, 32.42, 297.58°)
OKLab	oklab(15.85% 0.001 -0.0917)
OKLCH	oklch(15.85% 0.092 270.6)
XYZ	xyz(0.6800, 0.3299, 3.1592)
Luminance	0.0033 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Midnight Blue (survey)

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#040333 #323303

analogous

#031A33 #040333 #1C0333

triadic

#040333 #330403 #033304

tetradic

#040333 #33031A #323303 #03331C

square

#040333 #33031A #323303 #03331C

split-complementary

#040333 #331C03 #1A3303

monochromatic

#02021D #02021D #040333 #09066D #0D0AA7

Accessibility & contrast

On white

19.70

#040333 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.07

#040333 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #040333

19.70:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##040333	#FFFFFF	#000000	##FFFFFF
##040333	1.00	19.70	1.07	19.70
#FFFFFF	19.70	1.00	21.00	1.00
#000000	1.07	21.00	1.00	21.00
##FFFFFF	19.70	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#000D34

Deuteranopia (green-blind)

#000832

Tritanopia (blue-blind)

#00111B

Achromatopsia (no color)

#0B0B0B

Design tokens & code

CSS

--color: #040333;
/* rgb */ color: rgb(4, 3, 51);
/* oklch */ color: oklch(15.9% 0.092 270.6);

Tailwind

colors: {
  custom: {
    50: '#4b476b',
    500: '#040333',
    950: '#000000',
  },
}

SCSS

$custom: #040333;
$custom-light: #4b476b;
$custom-dark: #000000;

JSON

{
  "hex": "#040333",
  "rgb": {
    "r": 4,
    "g": 3,
    "b": 51
  },
  "hsl": {
    "h": 241.25,
    "s": 88.889,
    "l": 10.588
  },
  "oklch": {
    "l": 0.15851,
    "c": 0.0917,
    "h": 270.6
  },
  "luminance": 0.0033
}

Semantic roles & 50–950 ramp

primary

#040333

secondary

#74761C

accent

#FF29FB

background

#F4F4F6

surface

#E7E6EB

border

#C3C2C6

text

#010007

muted

#77777A

Preview Lab

Preview with #040333

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

Preview Lab → · Contrast checker → · Palette generator →