#0A1347#0A1347

#0A1347 is a very dark, moderate blue. Relative luminance 0.010; OKLCH L 22.2% C 0.097 H 268.9°. Best body text is #FFFFFF at 17.54:1 contrast (WCAG AA passes).

Color values

HEX	#0A1347
RGB	rgb(10, 19, 71)
HSL	hsl(231, 75%, 16%)
HSV	hsv(231, 86%, 28%)
CMYK	cmyk(85.9%, 73.2%, 0%, 72.2%)
CIE-LAB	lab(8.87, 18.10, -33.54)
CIE-LCH	lch(8.87, 38.11, 298.35°)
OKLab	oklab(22.16% -0.0018 -0.097)
OKLCH	oklch(22.16% 0.097 268.9)
XYZ	xyz(1.4950, 0.9850, 6.0714)
Luminance	0.0098 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Midnight Blue (survey)

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#0A1347 #473E0A

analogous

#0A3147 #0A1347 #1F0A47

triadic

#0A1347 #470A13 #13470A

tetradic

#0A1347 #470A31 #473E0A #0A471F

square

#0A1347 #470A31 #473E0A #0A471F

split-complementary

#0A1347 #471F0A #31470A

monochromatic

#04071B #04071B #0A1347 #12217D #1930B2

Accessibility & contrast

On white

17.54

#0A1347 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.20

#0A1347 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #0A1347

17.54:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##0A1347	#FFFFFF	#000000	##FFFFFF
##0A1347	1.00	17.54	1.20	17.54
#FFFFFF	17.54	1.00	21.00	1.00
#000000	1.20	21.00	1.00	21.00
##FFFFFF	17.54	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#001C49

Deuteranopia (green-blind)

#001646

Tritanopia (blue-blind)

#00212B

Achromatopsia (no color)

#191919

Design tokens & code

CSS

--color: #0a1347;
/* rgb */ color: rgb(10, 19, 71);
/* oklch */ color: oklch(22.2% 0.097 268.9);

Tailwind

colors: {
  custom: {
    50: '#55507b',
    500: '#0a1347',
    950: '#000000',
  },
}

SCSS

$custom: #0a1347;
$custom-light: #55507b;
$custom-dark: #000000;

JSON

{
  "hex": "#0a1347",
  "rgb": {
    "r": 10,
    "g": 19,
    "b": 71
  },
  "hsl": {
    "h": 231.148,
    "s": 75.309,
    "l": 15.882
  },
  "oklch": {
    "l": 0.22155,
    "c": 0.09706,
    "h": 268.9
  },
  "luminance": 0.00985
}

Semantic roles & 50–950 ramp

primary

#0A1347

secondary

#847729

accent

#D636F2

background

#F5F4F7

surface

#E9E7EE

border

#C5C3C9

text

#030209

muted

#78787B

Preview Lab

Preview with #0A1347

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

Preview Lab → · Contrast checker → · Palette generator →