#00052B#00052B

#00052B is a very dark, moderate blue. Relative luminance 0.003; OKLCH L 14.8% C 0.079 H 263.5°. Best body text is #FFFFFF at 19.88:1 contrast (WCAG AA passes).

Color values

HEX	#00052B
RGB	rgb(0, 5, 43)
HSL	hsl(233, 100%, 8%)
HSV	hsv(233, 100%, 17%)
CMYK	cmyk(100%, 88.4%, 0%, 83.1%)
CIE-LAB	lab(2.56, 9.07, -23.40)
CIE-LCH	lch(2.56, 25.10, 291.17°)
OKLab	oklab(14.77% -0.0089 -0.0787)
OKLCH	oklch(14.77% 0.079 263.5)
XYZ	xyz(0.4902, 0.2829, 2.3138)
Luminance	0.0028 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Midnight Blue (survey)

#020035

ΔE00 4.20

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#00052B #2B2600

analogous

#001A2B #00052B #10002B

triadic

#00052B #2B0005 #052B00

tetradic

#00052B #2B001A #2B2600 #002B10

square

#00052B #2B001A #2B2600 #002B10

split-complementary

#00052B #2B1000 #1A2B00

monochromatic

#00041F #00041F #00052B #000C68 #0013A5

Accessibility & contrast

On white

19.88

#00052B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.06

#00052B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #00052B

19.88:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##00052B	#FFFFFF	#000000	##FFFFFF
##00052B	1.00	19.88	1.06	19.88
#FFFFFF	19.88	1.00	21.00	1.00
#000000	1.06	21.00	1.00	21.00
##FFFFFF	19.88	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#000C2C

Deuteranopia (green-blind)

#00072A

Tritanopia (blue-blind)

#001017

Achromatopsia (no color)

#090909

Design tokens & code

CSS

--color: #00052b;
/* rgb */ color: rgb(0, 5, 43);
/* oklch */ color: oklch(14.8% 0.079 263.5);

Tailwind

colors: {
  custom: {
    50: '#474964',
    500: '#00052b',
    950: '#000000',
  },
}

SCSS

$custom: #00052b;
$custom-light: #474964;
$custom-dark: #000000;

JSON

{
  "hex": "#00052b",
  "rgb": {
    "r": 0,
    "g": 5,
    "b": 43
  },
  "hsl": {
    "h": 233.023,
    "s": 100,
    "l": 8.431
  },
  "oklch": {
    "l": 0.14769,
    "c": 0.07919,
    "h": 263.5
  },
  "luminance": 0.00283
}

Semantic roles & 50–950 ramp

primary

#00052B

secondary

#736814

accent

#E629FF

background

#F4F4F6

surface

#E6E6EB

border

#C2C2C6

text

#000005

muted

#77777A

Preview Lab

Preview with #00052B

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

Preview Lab → · Contrast checker → · Palette generator →