#000A28#000A28

#000A28 is a very dark, moderate blue. Relative luminance 0.004; OKLCH L 15.8% C 0.066 H 260.3°. Best body text is #FFFFFF at 19.55:1 contrast (WCAG AA passes).

Color values

HEX	#000A28
RGB	rgb(0, 10, 40)
HSL	hsl(225, 100%, 8%)
HSV	hsv(225, 100%, 16%)
CMYK	cmyk(100%, 75%, 0%, 84.3%)
CIE-LAB	lab(3.34, 5.72, -19.88)
CIE-LCH	lch(3.34, 20.68, 286.04°)
OKLab	oklab(15.79% -0.011 -0.0646)
OKLCH	oklch(15.79% 0.066 260.3)
XYZ	xyz(0.4914, 0.3702, 2.0526)
Luminance	0.0037 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Midnight Blue (survey)

#020035

ΔE00 6.33

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#000A28 #281E00

analogous

#001E28 #000A28 #0A0028

triadic

#000A28 #28000A #0A2800

tetradic

#000A28 #28001E #281E00 #00280A

square

#000A28 #28001E #281E00 #00280A

split-complementary

#000A28 #280A00 #1E2800

monochromatic

#00081F #00081F #000A28 #001965 #0029A2

Accessibility & contrast

On white

19.55

#000A28 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.07

#000A28 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #000A28

19.55:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##000A28	#FFFFFF	#000000	##FFFFFF
##000A28	1.00	19.55	1.07	19.55
#FFFFFF	19.55	1.00	21.00	1.00
#000000	1.07	21.00	1.00	21.00
##FFFFFF	19.55	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#000E29

Deuteranopia (green-blind)

#000A27

Tritanopia (blue-blind)

#001217

Achromatopsia (no color)

#0C0C0C

Design tokens & code

CSS

--color: #000a28;
/* rgb */ color: rgb(0, 10, 40);
/* oklch */ color: oklch(15.8% 0.066 260.3);

Tailwind

colors: {
  custom: {
    50: '#474b62',
    500: '#000a28',
    950: '#000000',
  },
}

SCSS

$custom: #000a28;
$custom-light: #474b62;
$custom-dark: #000000;

JSON

{
  "hex": "#000a28",
  "rgb": {
    "r": 0,
    "g": 10,
    "b": 40
  },
  "hsl": {
    "h": 225,
    "s": 100,
    "l": 7.843
  },
  "oklch": {
    "l": 0.15789,
    "c": 0.06552,
    "h": 260.3
  },
  "luminance": 0.0037
}

Semantic roles & 50–950 ramp

primary

#000A28

secondary

#705914

accent

#C929FF

background

#F4F4F5

surface

#E6E7EA

border

#C2C3C6

text

#000105

muted

#777779

Preview Lab

Preview with #000A28

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

Preview Lab → · Contrast checker → · Palette generator →