#040B46#040B46

#040B46 is a very dark, moderate blue. Relative luminance 0.007; OKLCH L 20.1% C 0.108 H 267.0°. Best body text is #FFFFFF at 18.40:1 contrast (WCAG AA passes).

Color values

HEX	#040B46
RGB	rgb(4, 11, 70)
HSL	hsl(234, 89%, 15%)
HSV	hsv(234, 94%, 27%)
CMYK	cmyk(94.3%, 84.3%, 0%, 72.5%)
CIE-LAB	lab(6.39, 22.30, -36.92)
CIE-LCH	lch(6.39, 43.13, 301.13°)
OKLab	oklab(20.14% -0.0056 -0.1077)
OKLCH	oklch(20.14% 0.108 267)
XYZ	xyz(1.2748, 0.7072, 5.8625)
Luminance	0.0071 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Midnight Blue (survey)

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#040B46 #463F04

analogous

#042C46 #040B46 #1E0446

triadic

#040B46 #46040B #0B4604

tetradic

#040B46 #46042C #463F04 #04461E

square

#040B46 #46042C #463F04 #04461E

split-complementary

#040B46 #461E04 #2C4604

monochromatic

#02051D #02051D #040B46 #071480 #0B1DBA

Accessibility & contrast

On white

18.40

#040B46 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.14

#040B46 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #040B46

18.40:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##040B46	#FFFFFF	#000000	##FFFFFF
##040B46	1.00	18.40	1.14	18.40
#FFFFFF	18.40	1.00	21.00	1.00
#000000	1.14	21.00	1.00	21.00
##FFFFFF	18.40	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#001748

Deuteranopia (green-blind)

#001145

Tritanopia (blue-blind)

#001D28

Achromatopsia (no color)

#141414

Design tokens & code

CSS

--color: #040b46;
/* rgb */ color: rgb(4, 11, 70);
/* oklch */ color: oklch(20.1% 0.108 267.0);

Tailwind

colors: {
  custom: {
    50: '#544a7a',
    500: '#040b46',
    950: '#000000',
  },
}

SCSS

$custom: #040b46;
$custom-light: #544a7a;
$custom-dark: #000000;

JSON

{
  "hex": "#040b46",
  "rgb": {
    "r": 4,
    "g": 11,
    "b": 70
  },
  "hsl": {
    "h": 233.636,
    "s": 89.189,
    "l": 14.51
  },
  "oklch": {
    "l": 0.20141,
    "c": 0.10781,
    "h": 267
  },
  "luminance": 0.00707
}

Semantic roles & 50–950 ramp

primary

#040B46

secondary

#877C1F

accent

#E829FF

background

#F5F4F7

surface

#E9E7EE

border

#C5C3C9

text

#030109

muted

#78777B

Preview Lab

Preview with #040B46

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

Preview Lab → · Contrast checker → · Palette generator →