#040029#040029

#040029 is a very dark, moderate blue. Relative luminance 0.002; OKLCH L 13.4% C 0.084 H 274.4°. Best body text is #FFFFFF at 20.25:1 contrast (WCAG AA passes).

Color values

HEX	#040029
RGB	rgb(4, 0, 41)
HSL	hsl(246, 100%, 8%)
HSV	hsv(246, 100%, 16%)
CMYK	cmyk(90.2%, 100%, 0%, 83.9%)
CIE-LAB	lab(1.68, 11.20, -23.23)
CIE-LCH	lch(1.68, 25.79, 295.74°)
OKLab	oklab(13.35% 0.0065 -0.084)
OKLCH	oklch(13.35% 0.084 274.4)
XYZ	xyz(0.4502, 0.1859, 2.1095)
Luminance	0.0019 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Midnight Blue (survey)

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#040029 #252900

analogous

#001029 #040029 #180029

triadic

#040029 #290400 #002904

tetradic

#040029 #290010 #252900 #002918

square

#040029 #290010 #252900 #002918

split-complementary

#040029 #291800 #102900

monochromatic

#03001F #03001F #040029 #0A0066 #1000A3

Accessibility & contrast

On white

20.25

#040029 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.04

#040029 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #040029

20.25:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##040029	#FFFFFF	#000000	##FFFFFF
##040029	1.00	20.25	1.04	20.25
#FFFFFF	20.25	1.00	21.00	1.00
#000000	1.04	21.00	1.00	21.00
##FFFFFF	20.25	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00082A

Deuteranopia (green-blind)

#000528

Tritanopia (blue-blind)

#000A13

Achromatopsia (no color)

#060606

Design tokens & code

CSS

--color: #040029;
/* rgb */ color: rgb(4, 0, 41);
/* oklch */ color: oklch(13.4% 0.084 274.4);

Tailwind

colors: {
  custom: {
    50: '#484663',
    500: '#040029',
    950: '#000000',
  },
}

SCSS

$custom: #040029;
$custom-light: #484663;
$custom-dark: #000000;

JSON

{
  "hex": "#040029",
  "rgb": {
    "r": 4,
    "g": 0,
    "b": 41
  },
  "hsl": {
    "h": 245.854,
    "s": 100,
    "l": 8.039
  },
  "oklch": {
    "l": 0.13351,
    "c": 0.08428,
    "h": 274.4
  },
  "luminance": 0.00186
}

Semantic roles & 50–950 ramp

primary

#040029

secondary

#687114

accent

#FF29EA

background

#F4F3F5

surface

#E7E5EA

border

#C3C1C6

text

#010005

muted

#777779

Preview Lab

Preview with #040029

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

Preview Lab → · Contrast checker → · Palette generator →