#0A143F#0A143F

#0A143F is a very dark, moderate blue. Relative luminance 0.009; OKLCH L 21.5% C 0.083 H 268.4°. Best body text is #FFFFFF at 17.72:1 contrast (WCAG AA passes).

Color values

HEX	#0A143F
RGB	rgb(10, 20, 63)
HSL	hsl(229, 73%, 14%)
HSV	hsv(229, 84%, 25%)
CMYK	cmyk(84.1%, 68.3%, 0%, 75.3%)
CIE-LAB	lab(8.34, 13.81, -28.75)
CIE-LCH	lch(8.34, 31.90, 295.66°)
OKLab	oklab(21.51% -0.0023 -0.083)
OKLCH	oklch(21.51% 0.083 268.4)
XYZ	xyz(1.2722, 0.9236, 4.8129)
Luminance	0.0092 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Midnight Blue (survey)

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#0A143F #3F350A

analogous

#0A2F3F #0A143F #1B0A3F

triadic

#0A143F #3F0A14 #143F0A

tetradic

#0A143F #3F0A2F #3F350A #0A3F1B

square

#0A143F #3F0A2F #3F350A #0A3F1B

split-complementary

#0A143F #3F1B0A #2F3F0A

monochromatic

#04081A #04081A #0A143F #122574 #1B36A9

Accessibility & contrast

On white

17.72

#0A143F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.18

#0A143F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #0A143F

17.72:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##0A143F	#FFFFFF	#000000	##FFFFFF
##0A143F	1.00	17.72	1.18	17.72
#FFFFFF	17.72	1.00	21.00	1.00
#000000	1.18	21.00	1.00	21.00
##FFFFFF	17.72	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#001B40

Deuteranopia (green-blind)

#00163E

Tritanopia (blue-blind)

#001F27

Achromatopsia (no color)

#181818

Design tokens & code

CSS

--color: #0a143f;
/* rgb */ color: rgb(10, 20, 63);
/* oklch */ color: oklch(21.5% 0.083 268.4);

Tailwind

colors: {
  custom: {
    50: '#535174',
    500: '#0a143f',
    950: '#000000',
  },
}

SCSS

$custom: #0a143f;
$custom-light: #535174;
$custom-dark: #000000;

JSON

{
  "hex": "#0a143f",
  "rgb": {
    "r": 10,
    "g": 20,
    "b": 63
  },
  "hsl": {
    "h": 228.679,
    "s": 72.603,
    "l": 14.314
  },
  "oklch": {
    "l": 0.21511,
    "c": 0.08305,
    "h": 268.4
  },
  "luminance": 0.00924
}

Semantic roles & 50–950 ramp

primary

#0A143F

secondary

#7C6C29

accent

#CD38EF

background

#F5F4F7

surface

#E8E7ED

border

#C4C3C8

text

#030208

muted

#78787B

Preview Lab

Preview with #0A143F

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

Preview Lab → · Contrast checker → · Palette generator →