#040C46#040C46

#040C46 is a very dark, moderate blue. Relative luminance 0.007; OKLCH L 20.3% C 0.107 H 266.8°. Best body text is #FFFFFF at 18.32:1 contrast (WCAG AA passes).

Color values

HEX	#040C46
RGB	rgb(4, 12, 70)
HSL	hsl(233, 89%, 15%)
HSV	hsv(233, 94%, 27%)
CMYK	cmyk(94.3%, 82.9%, 0%, 72.5%)
CIE-LAB	lab(6.60, 21.74, -36.57)
CIE-LCH	lch(6.60, 42.55, 300.73°)
OKLab	oklab(20.32% -0.0059 -0.1065)
OKLCH	oklch(20.32% 0.107 266.8)
XYZ	xyz(1.2866, 0.7308, 5.8664)
Luminance	0.0073 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Midnight Blue (survey)

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#040C46 #463E04

analogous

#042D46 #040C46 #1D0446

triadic

#040C46 #46040C #0C4604

tetradic

#040C46 #46042D #463E04 #04461D

square

#040C46 #46042D #463E04 #04461D

split-complementary

#040C46 #461D04 #2D4604

monochromatic

#02051D #02051D #040C46 #071680 #0B20BA

Accessibility & contrast

On white

18.32

#040C46 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.15

#040C46 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #040C46

18.32:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##040C46	#FFFFFF	#000000	##FFFFFF
##040C46	1.00	18.32	1.15	18.32
#FFFFFF	18.32	1.00	21.00	1.00
#000000	1.15	21.00	1.00	21.00
##FFFFFF	18.32	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#001848

Deuteranopia (green-blind)

#001145

Tritanopia (blue-blind)

#001D28

Achromatopsia (no color)

#151515

Design tokens & code

CSS

--color: #040c46;
/* rgb */ color: rgb(4, 12, 70);
/* oklch */ color: oklch(20.3% 0.107 266.8);

Tailwind

colors: {
  custom: {
    50: '#544b7a',
    500: '#040c46',
    950: '#000000',
  },
}

SCSS

$custom: #040c46;
$custom-light: #544b7a;
$custom-dark: #000000;

JSON

{
  "hex": "#040c46",
  "rgb": {
    "r": 4,
    "g": 12,
    "b": 70
  },
  "hsl": {
    "h": 232.727,
    "s": 89.189,
    "l": 14.51
  },
  "oklch": {
    "l": 0.20315,
    "c": 0.10665,
    "h": 266.8
  },
  "luminance": 0.00731
}

Semantic roles & 50–950 ramp

primary

#040C46

secondary

#877A1F

accent

#E529FF

background

#F5F4F7

surface

#E9E7EE

border

#C5C3C9

text

#030109

muted

#78777B

Preview Lab

Preview with #040C46

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

Preview Lab → · Contrast checker → · Palette generator →