#040234#040234

#040234 is a very dark, moderate blue. Relative luminance 0.003; OKLCH L 15.7% C 0.095 H 270.7°. Best body text is #FFFFFF at 19.75:1 contrast (WCAG AA passes).

Color values

HEX	#040234
RGB	rgb(4, 2, 52)
HSL	hsl(242, 93%, 11%)
HSV	hsv(242, 96%, 20%)
CMYK	cmyk(92.3%, 96.2%, 0%, 79.6%)
CIE-LAB	lab(2.86, 15.98, -29.66)
CIE-LCH	lch(2.86, 33.69, 298.31°)
OKLab	oklab(15.74% 0.0011 -0.0949)
OKLCH	oklch(15.74% 0.095 270.7)
XYZ	xyz(0.6914, 0.3171, 3.2729)
Luminance	0.0032 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Midnight Blue (survey)

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#040234 #323402

analogous

#021934 #040234 #1D0234

triadic

#040234 #340402 #023404

tetradic

#040234 #340219 #323402 #02341D

square

#040234 #340219 #323402 #02341D

split-complementary

#040234 #341D02 #193402

monochromatic

#02011D #02011D #040234 #09046F #0D07AA

Accessibility & contrast

On white

19.75

#040234 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.06

#040234 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #040234

19.75:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##040234	#FFFFFF	#000000	##FFFFFF
##040234	1.00	19.75	1.06	19.75
#FFFFFF	19.75	1.00	21.00	1.00
#000000	1.06	21.00	1.00	21.00
##FFFFFF	19.75	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#000D35

Deuteranopia (green-blind)

#000833

Tritanopia (blue-blind)

#00111B

Achromatopsia (no color)

#0A0A0A

Design tokens & code

CSS

--color: #040234;
/* rgb */ color: rgb(4, 2, 52);
/* oklch */ color: oklch(15.7% 0.095 270.7);

Tailwind

colors: {
  custom: {
    50: '#4c476c',
    500: '#040234',
    950: '#000000',
  },
}

SCSS

$custom: #040234;
$custom-light: #4c476c;
$custom-dark: #000000;

JSON

{
  "hex": "#040234",
  "rgb": {
    "r": 4,
    "g": 2,
    "b": 52
  },
  "hsl": {
    "h": 242.4,
    "s": 92.593,
    "l": 10.588
  },
  "oklch": {
    "l": 0.15741,
    "c": 0.09488,
    "h": 270.7
  },
  "luminance": 0.00317
}

Semantic roles & 50–950 ramp

primary

#040234

secondary

#74781A

accent

#FF29F6

background

#F4F3F6

surface

#E7E5EB

border

#C3C1C6

text

#010007

muted

#77777A

Preview Lab

Preview with #040234

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

Preview Lab → · Contrast checker → · Palette generator →