#0A143A#0A143A

#0A143A is a very dark, moderate blue. Relative luminance 0.009; OKLCH L 21.0% C 0.075 H 268.1°. Best body text is #FFFFFF at 17.89:1 contrast (WCAG AA passes).

Color values

HEX	#0A143A
RGB	rgb(10, 20, 58)
HSL	hsl(228, 71%, 13%)
HSV	hsv(228, 83%, 23%)
CMYK	cmyk(82.8%, 65.5%, 0%, 77.3%)
CIE-LAB	lab(7.86, 11.57, -25.95)
CIE-LCH	lch(7.86, 28.41, 294.02°)
OKLab	oklab(21% -0.0025 -0.0748)
OKLCH	oklch(21% 0.075 268.1)
XYZ	xyz(1.1388, 0.8702, 4.1101)
Luminance	0.0087 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#0A143A #3A300A

analogous

#0A2C3A #0A143A #180A3A

triadic

#0A143A #3A0A14 #143A0A

tetradic

#0A143A #3A0A2C #3A300A #0A3A18

square

#0A143A #3A0A2C #3A300A #0A3A18

split-complementary

#0A143A #3A180A #2C3A0A

monochromatic

#05091A #05091A #0A143A #13266E #1C38A2

Accessibility & contrast

On white

17.89

#0A143A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.17

#0A143A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #0A143A

17.89:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##0A143A	#FFFFFF	#000000	##FFFFFF
##0A143A	1.00	17.89	1.17	17.89
#FFFFFF	17.89	1.00	21.00	1.00
#000000	1.17	21.00	1.00	21.00
##FFFFFF	17.89	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#001A3B

Deuteranopia (green-blind)

#001539

Tritanopia (blue-blind)

#001D24

Achromatopsia (no color)

#171717

Design tokens & code

CSS

--color: #0a143a;
/* rgb */ color: rgb(10, 20, 58);
/* oklch */ color: oklch(21.0% 0.075 268.1);

Tailwind

colors: {
  custom: {
    50: '#515170',
    500: '#0a143a',
    950: '#000000',
  },
}

SCSS

$custom: #0a143a;
$custom-light: #515170;
$custom-dark: #000000;

JSON

{
  "hex": "#0a143a",
  "rgb": {
    "r": 10,
    "g": 20,
    "b": 58
  },
  "hsl": {
    "h": 227.5,
    "s": 70.588,
    "l": 13.333
  },
  "oklch": {
    "l": 0.21004,
    "c": 0.07483,
    "h": 268.1
  },
  "luminance": 0.0087
}

Semantic roles & 50–950 ramp

primary

#0A143A

secondary

#776728

accent

#C83AED

background

#F4F4F6

surface

#E7E7EC

border

#C3C3C7

text

#020207

muted

#78787A

Preview Lab

Preview with #0A143A

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

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