#000A19#000A19

#000A19 is a very dark, muted blue. Relative luminance 0.003; OKLCH L 14.2% C 0.040 H 249.3°. Best body text is #FFFFFF at 19.86:1 contrast (WCAG AA passes).

Color values

HEX	#000A19
RGB	rgb(0, 10, 25)
HSL	hsl(216, 100%, 5%)
HSV	hsv(216, 100%, 10%)
CMYK	cmyk(100%, 60%, 0%, 90.2%)
CIE-LAB	lab(2.59, 0.45, -9.26)
CIE-LCH	lch(2.59, 9.27, 272.77°)
OKLab	oklab(14.21% -0.014 -0.0369)
OKLCH	oklch(14.21% 0.04 249.3)
XYZ	xyz(0.2839, 0.2872, 0.9600)
Luminance	0.0029 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#000A19 #190F00

analogous

#001719 #000A19 #030019

triadic

#000A19 #19000A #0A1900

tetradic

#000A19 #190017 #190F00 #001903

square

#000A19 #190017 #190F00 #001903

split-complementary

#000A19 #190300 #171900

monochromatic

#000C1F #000C1F #000C1F #002256 #003B93

Accessibility & contrast

On white

19.86

#000A19 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.06

#000A19 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #000A19

19.86:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##000A19	#FFFFFF	#000000	##FFFFFF
##000A19	1.00	19.86	1.06	19.86
#FFFFFF	19.86	1.00	21.00	1.00
#000000	1.06	21.00	1.00	21.00
##FFFFFF	19.86	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#040B1A

Deuteranopia (green-blind)

#010819

Tritanopia (blue-blind)

#000E10

Achromatopsia (no color)

#090909

Design tokens & code

CSS

--color: #000a19;
/* rgb */ color: rgb(0, 10, 25);
/* oklch */ color: oklch(14.2% 0.040 249.3);

Tailwind

colors: {
  custom: {
    50: '#464b55',
    500: '#000a19',
    950: '#000000',
  },
}

SCSS

$custom: #000a19;
$custom-light: #464b55;
$custom-dark: #000000;

JSON

{
  "hex": "#000a19",
  "rgb": {
    "r": 0,
    "g": 10,
    "b": 25
  },
  "hsl": {
    "h": 216,
    "s": 100,
    "l": 4.902
  },
  "oklch": {
    "l": 0.14213,
    "c": 0.0395,
    "h": 249.3
  },
  "luminance": 0.00287
}

Semantic roles & 50–950 ramp

primary

#000A19

secondary

#634312

accent

#A929FF

background

#F3F4F4

surface

#E5E7E7

border

#C1C3C3

text

#000103

muted

#777778

Preview Lab

Preview with #000A19

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

Preview Lab → · Contrast checker → · Palette generator →