#0A0728#0A0728

#0A0728 is a very dark, moderate blue. Relative luminance 0.004; OKLCH L 16.1% C 0.065 H 280.6°. Best body text is #FFFFFF at 19.55:1 contrast (WCAG AA passes).

Color values

HEX	#0A0728
RGB	rgb(10, 7, 40)
HSL	hsl(245, 70%, 9%)
HSV	hsv(245, 83%, 16%)
CMYK	cmyk(75%, 82.5%, 0%, 84.3%)
CIE-LAB	lab(3.34, 9.53, -19.84)
CIE-LCH	lch(3.34, 22.01, 295.66°)
OKLab	oklab(16.06% 0.012 -0.0641)
OKLCH	oklch(16.06% 0.065 280.6)
XYZ	xyz(0.5840, 0.3696, 2.0476)
Luminance	0.0037 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Midnight Blue (survey)

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#0A0728 #252807

analogous

#071528 #0A0728 #1B0728

triadic

#0A0728 #280A07 #07280A

tetradic

#0A0728 #280715 #252807 #07281B

square

#0A0728 #280715 #252807 #07281B

split-complementary

#0A0728 #281B07 #152807

monochromatic

#07051A #07051A #0A0728 #17105C #241990

Accessibility & contrast

On white

19.55

#0A0728 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.07

#0A0728 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #0A0728

19.55:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##0A0728	#FFFFFF	#000000	##FFFFFF
##0A0728	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)

#000D29

Deuteranopia (green-blind)

#000B27

Tritanopia (blue-blind)

#000F16

Achromatopsia (no color)

#0C0C0C

Design tokens & code

CSS

--color: #0a0728;
/* rgb */ color: rgb(10, 7, 40);
/* oklch */ color: oklch(16.1% 0.065 280.6);

Tailwind

colors: {
  custom: {
    50: '#4c4a62',
    500: '#0a0728',
    950: '#000000',
  },
}

SCSS

$custom: #0a0728;
$custom-light: #4c4a62;
$custom-dark: #000000;

JSON

{
  "hex": "#0a0728",
  "rgb": {
    "r": 10,
    "g": 7,
    "b": 40
  },
  "hsl": {
    "h": 245.455,
    "s": 70.213,
    "l": 9.216
  },
  "oklch": {
    "l": 0.16065,
    "c": 0.06522,
    "h": 280.6
  },
  "luminance": 0.0037
}

Semantic roles & 50–950 ramp

primary

#0A0728

secondary

#616823

accent

#ED3BDD

background

#F4F4F5

surface

#E7E7EA

border

#C3C3C6

text

#010105

muted

#777779

Preview Lab

Preview with #0A0728

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

Preview Lab → · Contrast checker → · Palette generator →