#00072B#00072B

#00072B is a very dark, moderate blue. Relative luminance 0.003; OKLCH L 15.3% C 0.075 H 262.7°. Best body text is #FFFFFF at 19.71:1 contrast (WCAG AA passes).

Color values

HEX	#00072B
RGB	rgb(0, 7, 43)
HSL	hsl(230, 100%, 8%)
HSV	hsv(230, 100%, 17%)
CMYK	cmyk(100%, 83.7%, 0%, 83.1%)
CIE-LAB	lab(2.95, 8.27, -22.79)
CIE-LCH	lch(2.95, 24.24, 289.94°)
OKLab	oklab(15.35% -0.0095 -0.0749)
OKLCH	oklch(15.35% 0.075 262.7)
XYZ	xyz(0.5119, 0.3263, 2.3210)
Luminance	0.0033 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Midnight Blue (survey)

#020035

ΔE00 4.65

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#00072B #2B2400

analogous

#001C2B #00072B #0E002B

triadic

#00072B #2B0007 #072B00

tetradic

#00072B #2B001C #2B2400 #002B0E

square

#00072B #2B001C #2B2400 #002B0E

split-complementary

#00072B #2B0E00 #1C2B00

monochromatic

#00051F #00051F #00072B #001168 #001BA5

Accessibility & contrast

On white

19.71

#00072B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.07

#00072B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #00072B

19.71:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##00072B	#FFFFFF	#000000	##FFFFFF
##00072B	1.00	19.71	1.07	19.71
#FFFFFF	19.71	1.00	21.00	1.00
#000000	1.07	21.00	1.00	21.00
##FFFFFF	19.71	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#000D2C

Deuteranopia (green-blind)

#00082A

Tritanopia (blue-blind)

#001117

Achromatopsia (no color)

#0B0B0B

Design tokens & code

CSS

--color: #00072b;
/* rgb */ color: rgb(0, 7, 43);
/* oklch */ color: oklch(15.3% 0.075 262.7);

Tailwind

colors: {
  custom: {
    50: '#474a64',
    500: '#00072b',
    950: '#000000',
  },
}

SCSS

$custom: #00072b;
$custom-light: #474a64;
$custom-dark: #000000;

JSON

{
  "hex": "#00072b",
  "rgb": {
    "r": 0,
    "g": 7,
    "b": 43
  },
  "hsl": {
    "h": 230.233,
    "s": 100,
    "l": 8.431
  },
  "oklch": {
    "l": 0.15349,
    "c": 0.07546,
    "h": 262.7
  },
  "luminance": 0.00326
}

Semantic roles & 50–950 ramp

primary

#00072B

secondary

#736314

accent

#DC29FF

background

#F4F4F6

surface

#E6E7EB

border

#C2C3C6

text

#000105

muted

#77777A

Preview Lab

Preview with #00072B

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

Preview Lab → · Contrast checker → · Palette generator →