#040F32#040F32

#040F32 is a very dark, moderate blue. Relative luminance 0.006; OKLCH L 18.5% C 0.072 H 264.9°. Best body text is #FFFFFF at 18.76:1 contrast (WCAG AA passes).

Color values

HEX	#040F32
RGB	rgb(4, 15, 50)
HSL	hsl(226, 85%, 11%)
HSV	hsv(226, 92%, 20%)
CMYK	cmyk(92%, 70%, 0%, 80.4%)
CIE-LAB	lab(5.40, 9.35, -24.11)
CIE-LCH	lch(5.40, 25.86, 291.20°)
OKLab	oklab(18.55% -0.0063 -0.0714)
OKLCH	oklch(18.55% 0.072 264.9)
XYZ	xyz(0.7964, 0.5977, 3.0904)
Luminance	0.0060 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Midnight Blue (survey)

#020035

ΔE00 4.32

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#040F32 #322704

analogous

#042632 #040F32 #100432

triadic

#040F32 #32040F #0F3204

tetradic

#040F32 #320426 #322704 #043210

square

#040F32 #320426 #322704 #043210

split-complementary

#040F32 #321004 #263204

monochromatic

#02091C #02091C #040F32 #09206B #0D31A3

Accessibility & contrast

On white

18.76

#040F32 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.12

#040F32 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #040F32

18.76:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##040F32	#FFFFFF	#000000	##FFFFFF
##040F32	1.00	18.76	1.12	18.76
#FFFFFF	18.76	1.00	21.00	1.00
#000000	1.12	21.00	1.00	21.00
##FFFFFF	18.76	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#001433

Deuteranopia (green-blind)

#001031

Tritanopia (blue-blind)

#00181E

Achromatopsia (no color)

#121212

Design tokens & code

CSS

--color: #040f32;
/* rgb */ color: rgb(4, 15, 50);
/* oklch */ color: oklch(18.5% 0.072 264.9);

Tailwind

colors: {
  custom: {
    50: '#4c4d6a',
    500: '#040f32',
    950: '#000000',
  },
}

SCSS

$custom: #040f32;
$custom-light: #4c4d6a;
$custom-dark: #000000;

JSON

{
  "hex": "#040f32",
  "rgb": {
    "r": 4,
    "g": 15,
    "b": 50
  },
  "hsl": {
    "h": 225.652,
    "s": 85.185,
    "l": 10.588
  },
  "oklch": {
    "l": 0.18547,
    "c": 0.0717,
    "h": 264.9
  },
  "luminance": 0.00598
}

Semantic roles & 50–950 ramp

primary

#040F32

secondary

#74601D

accent

#CA2CFB

background

#F4F4F6

surface

#E7E7EB

border

#C3C3C6

text

#010106

muted

#77777A

Preview Lab

Preview with #040F32

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

Preview Lab → · Contrast checker → · Palette generator →