#00031C#00031C

#00031C is a very dark, moderate blue. Relative luminance 0.001; OKLCH L 11.9% C 0.060 H 263.1°. Best body text is #FFFFFF at 20.39:1 contrast (WCAG AA passes).

Color values

HEX	#00031C
RGB	rgb(0, 3, 28)
HSL	hsl(234, 100%, 5%)
HSV	hsv(234, 100%, 11%)
CMYK	cmyk(100%, 89.3%, 0%, 89%)
CIE-LAB	lab(1.34, 4.12, -13.52)
CIE-LCH	lch(1.34, 14.13, 286.95°)
OKLab	oklab(11.86% -0.0073 -0.0597)
OKLCH	oklch(11.86% 0.06 263.1)
XYZ	xyz(0.2421, 0.1489, 1.1144)
Luminance	0.0015 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#00031C #1C1900

analogous

#00111C #00031C #0B001C

triadic

#00031C #1C0003 #031C00

tetradic

#00031C #1C0011 #1C1900 #001C0B

square

#00031C #1C0011 #1C1900 #001C0B

split-complementary

#00031C #1C0B00 #111C00

monochromatic

#00031F #00031F #00031F #000A59 #001096

Accessibility & contrast

On white

20.39

#00031C on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.03

#00031C on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #00031C

20.39:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##00031C	#FFFFFF	#000000	##FFFFFF
##00031C	1.00	20.39	1.03	20.39
#FFFFFF	20.39	1.00	21.00	1.00
#000000	1.03	21.00	1.00	21.00
##FFFFFF	20.39	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00061D

Deuteranopia (green-blind)

#00041C

Tritanopia (blue-blind)

#00080D

Achromatopsia (no color)

#050505

Design tokens & code

CSS

--color: #00031c;
/* rgb */ color: rgb(0, 3, 28);
/* oklch */ color: oklch(11.9% 0.060 263.1);

Tailwind

colors: {
  custom: {
    50: '#464857',
    500: '#00031c',
    950: '#000000',
  },
}

SCSS

$custom: #00031c;
$custom-light: #464857;
$custom-dark: #000000;

JSON

{
  "hex": "#00031c",
  "rgb": {
    "r": 0,
    "g": 3,
    "b": 28
  },
  "hsl": {
    "h": 233.571,
    "s": 100,
    "l": 5.49
  },
  "oklch": {
    "l": 0.11855,
    "c": 0.06019,
    "h": 263.1
  },
  "luminance": 0.00149
}

Semantic roles & 50–950 ramp

primary

#00031C

secondary

#665D12

accent

#E829FF

background

#F3F4F5

surface

#E5E6E9

border

#C1C2C5

text

#000003

muted

#767778

Preview Lab

Preview with #00031C

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

Preview Lab → · Contrast checker → · Palette generator →