#000428#000428

#000428 is a very dark, moderate blue. Relative luminance 0.002; OKLCH L 14.0% C 0.077 H 263.7°. Best body text is #FFFFFF at 20.04:1 contrast (WCAG AA passes).

Color values

HEX	#000428
RGB	rgb(0, 4, 40)
HSL	hsl(234, 100%, 8%)
HSV	hsv(234, 100%, 16%)
CMYK	cmyk(100%, 90%, 0%, 84.3%)
CIE-LAB	lab(2.17, 8.12, -21.72)
CIE-LCH	lch(2.17, 23.18, 290.50°)
OKLab	oklab(14.01% -0.0084 -0.0762)
OKLCH	oklch(14.01% 0.077 263.7)
XYZ	xyz(0.4263, 0.2400, 2.0309)
Luminance	0.0024 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Midnight Blue (survey)

#020035

ΔE00 4.98

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#000428 #282400

analogous

#001828 #000428 #100028

triadic

#000428 #280004 #042800

tetradic

#000428 #280018 #282400 #002810

square

#000428 #280018 #282400 #002810

split-complementary

#000428 #281000 #182800

monochromatic

#00031F #00031F #000428 #000A65 #0010A2

Accessibility & contrast

On white

20.04

#000428 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.05

#000428 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #000428

20.04:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##000428	#FFFFFF	#000000	##FFFFFF
##000428	1.00	20.04	1.05	20.04
#FFFFFF	20.04	1.00	21.00	1.00
#000000	1.05	21.00	1.00	21.00
##FFFFFF	20.04	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#000A29

Deuteranopia (green-blind)

#000627

Tritanopia (blue-blind)

#000E15

Achromatopsia (no color)

#080808

Design tokens & code

CSS

--color: #000428;
/* rgb */ color: rgb(0, 4, 40);
/* oklch */ color: oklch(14.0% 0.077 263.7);

Tailwind

colors: {
  custom: {
    50: '#464862',
    500: '#000428',
    950: '#000000',
  },
}

SCSS

$custom: #000428;
$custom-light: #464862;
$custom-dark: #000000;

JSON

{
  "hex": "#000428",
  "rgb": {
    "r": 0,
    "g": 4,
    "b": 40
  },
  "hsl": {
    "h": 234,
    "s": 100,
    "l": 7.843
  },
  "oklch": {
    "l": 0.14014,
    "c": 0.0767,
    "h": 263.7
  },
  "luminance": 0.0024
}

Semantic roles & 50–950 ramp

primary

#000428

secondary

#706714

accent

#EA29FF

background

#F4F4F5

surface

#E6E6EA

border

#C2C2C6

text

#000005

muted

#777779

Preview Lab

Preview with #000428

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

Preview Lab → · Contrast checker → · Palette generator →