#000423#000423

#000423 is a very dark, moderate blue. Relative luminance 0.002; OKLCH L 13.3% C 0.069 H 263.3°. Best body text is #FFFFFF at 20.16:1 contrast (WCAG AA passes).

Color values

HEX	#000423
RGB	rgb(0, 4, 35)
HSL	hsl(233, 100%, 7%)
HSV	hsv(233, 100%, 14%)
CMYK	cmyk(100%, 88.6%, 0%, 86.3%)
CIE-LAB	lab(1.88, 6.10, -18.28)
CIE-LCH	lch(1.88, 19.27, 288.45°)
OKLab	oklab(13.28% -0.0081 -0.0684)
OKLCH	oklch(13.28% 0.069 263.3)
XYZ	xyz(0.3467, 0.2081, 1.6117)
Luminance	0.0021 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Midnight Blue (survey)

#020035

ΔE00 6.82

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#000423 #231F00

analogous

#001623 #000423 #0E0023

triadic

#000423 #230004 #042300

tetradic

#000423 #230016 #231F00 #00230E

square

#000423 #230016 #231F00 #00230E

split-complementary

#000423 #230E00 #162300

monochromatic

#00031F #00031F #000423 #000B60 #00129D

Accessibility & contrast

On white

20.16

#000423 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.04

#000423 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #000423

20.16:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##000423	#FFFFFF	#000000	##FFFFFF
##000423	1.00	20.16	1.04	20.16
#FFFFFF	20.16	1.00	21.00	1.00
#000000	1.04	21.00	1.00	21.00
##FFFFFF	20.16	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#000924

Deuteranopia (green-blind)

#000522

Tritanopia (blue-blind)

#000C12

Achromatopsia (no color)

#070707

Design tokens & code

CSS

--color: #000423;
/* rgb */ color: rgb(0, 4, 35);
/* oklch */ color: oklch(13.3% 0.069 263.3);

Tailwind

colors: {
  custom: {
    50: '#46485e',
    500: '#000423',
    950: '#000000',
  },
}

SCSS

$custom: #000423;
$custom-light: #46485e;
$custom-dark: #000000;

JSON

{
  "hex": "#000423",
  "rgb": {
    "r": 0,
    "g": 4,
    "b": 35
  },
  "hsl": {
    "h": 233.143,
    "s": 100,
    "l": 6.863
  },
  "oklch": {
    "l": 0.13284,
    "c": 0.06889,
    "h": 263.3
  },
  "luminance": 0.00208
}

Semantic roles & 50–950 ramp

primary

#000423

secondary

#6C6213

accent

#E729FF

background

#F4F4F5

surface

#E6E6E9

border

#C2C2C5

text

#000004

muted

#777779

Preview Lab

Preview with #000423

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

Preview Lab → · Contrast checker → · Palette generator →