#00031D#00031D

#00031D is a very dark, moderate blue. Relative luminance 0.002; OKLCH L 12.0% C 0.062 H 263.2°. Best body text is #FFFFFF at 20.37:1 contrast (WCAG AA passes).

Color values

HEX	#00031D
RGB	rgb(0, 3, 29)
HSL	hsl(234, 100%, 6%)
HSV	hsv(234, 100%, 11%)
CMYK	cmyk(100%, 89.7%, 0%, 88.6%)
CIE-LAB	lab(1.39, 4.43, -14.26)
CIE-LCH	lch(1.39, 14.93, 287.26°)
OKLab	oklab(12% -0.0073 -0.0614)
OKLCH	oklch(12% 0.062 263.2)
XYZ	xyz(0.2543, 0.1538, 1.1784)
Luminance	0.0015 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Midnight Blue (survey)

#020035

ΔE00 9.22

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#00031D #1D1A00

analogous

#00111D #00031D #0B001D

triadic

#00031D #1D0003 #031D00

tetradic

#00031D #1D0011 #1D1A00 #001D0B

square

#00031D #1D0011 #1D1A00 #001D0B

split-complementary

#00031D #1D0B00 #111D00

monochromatic

#00031F #00031F #00031F #00095A #001097

Accessibility & contrast

On white

20.37

#00031D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.03

#00031D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #00031D

20.37:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##00031D	#FFFFFF	#000000	##FFFFFF
##00031D	1.00	20.37	1.03	20.37
#FFFFFF	20.37	1.00	21.00	1.00
#000000	1.03	21.00	1.00	21.00
##FFFFFF	20.37	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00061E

Deuteranopia (green-blind)

#00041C

Tritanopia (blue-blind)

#00090E

Achromatopsia (no color)

#050505

Design tokens & code

CSS

--color: #00031d;
/* rgb */ color: rgb(0, 3, 29);
/* oklch */ color: oklch(12.0% 0.062 263.2);

Tailwind

colors: {
  custom: {
    50: '#464858',
    500: '#00031d',
    950: '#000000',
  },
}

SCSS

$custom: #00031d;
$custom-light: #464858;
$custom-dark: #000000;

JSON

{
  "hex": "#00031d",
  "rgb": {
    "r": 0,
    "g": 3,
    "b": 29
  },
  "hsl": {
    "h": 233.793,
    "s": 100,
    "l": 5.686
  },
  "oklch": {
    "l": 0.12001,
    "c": 0.06184,
    "h": 263.2
  },
  "luminance": 0.00154
}

Semantic roles & 50–950 ramp

primary

#00031D

secondary

#675E12

accent

#E929FF

background

#F3F4F5

surface

#E5E6E9

border

#C1C2C5

text

#000003

muted

#767778

Preview Lab

Preview with #00031D

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

Preview Lab → · Contrast checker → · Palette generator →