#040831#040831

#040831 is a very dark, moderate blue. Relative luminance 0.004; OKLCH L 16.8% C 0.080 H 269.0°. Best body text is #FFFFFF at 19.37:1 contrast (WCAG AA passes).

Color values

HEX	#040831
RGB	rgb(4, 8, 49)
HSL	hsl(235, 85%, 10%)
HSV	hsv(235, 92%, 19%)
CMYK	cmyk(91.8%, 83.7%, 0%, 80.8%)
CIE-LAB	lab(3.80, 11.91, -25.92)
CIE-LCH	lch(3.80, 28.53, 294.68°)
OKLab	oklab(16.81% -0.0015 -0.0804)
OKLCH	oklch(16.81% 0.08 269)
XYZ	xyz(0.6911, 0.4211, 2.9500)
Luminance	0.0042 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Midnight Blue (survey)

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#040831 #312D04

analogous

#041E31 #040831 #160431

triadic

#040831 #310408 #083104

tetradic

#040831 #31041E #312D04 #043116

square

#040831 #31041E #312D04 #043116

split-complementary

#040831 #311604 #1E3104

monochromatic

#02051C #02051C #040831 #09116A #0D1AA2

Accessibility & contrast

On white

19.37

#040831 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.08

#040831 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #040831

19.37:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##040831	#FFFFFF	#000000	##FFFFFF
##040831	1.00	19.37	1.08	19.37
#FFFFFF	19.37	1.00	21.00	1.00
#000000	1.08	21.00	1.00	21.00
##FFFFFF	19.37	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#001032

Deuteranopia (green-blind)

#000B30

Tritanopia (blue-blind)

#00131B

Achromatopsia (no color)

#0E0E0E

Design tokens & code

CSS

--color: #040831;
/* rgb */ color: rgb(4, 8, 49);
/* oklch */ color: oklch(16.8% 0.080 269.0);

Tailwind

colors: {
  custom: {
    50: '#4b4a69',
    500: '#040831',
    950: '#000000',
  },
}

SCSS

$custom: #040831;
$custom-light: #4b4a69;
$custom-dark: #000000;

JSON

{
  "hex": "#040831",
  "rgb": {
    "r": 4,
    "g": 8,
    "b": 49
  },
  "hsl": {
    "h": 234.667,
    "s": 84.906,
    "l": 10.392
  },
  "oklch": {
    "l": 0.16805,
    "c": 0.08045,
    "h": 269
  },
  "luminance": 0.00421
}

Semantic roles & 50–950 ramp

primary

#040831

secondary

#736C1D

accent

#E92DFB

background

#F4F4F6

surface

#E7E7EB

border

#C3C3C6

text

#010106

muted

#77777A

Preview Lab

Preview with #040831

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

Preview Lab → · Contrast checker → · Palette generator →