#0A193A#0A193A

#0A193A is a very dark, moderate blue. Relative luminance 0.011; OKLCH L 22.3% C 0.067 H 263.5°. Best body text is #FFFFFF at 17.31:1 contrast (WCAG AA passes).

Color values

HEX	#0A193A
RGB	rgb(10, 25, 58)
HSL	hsl(221, 71%, 13%)
HSV	hsv(221, 83%, 23%)
CMYK	cmyk(82.8%, 56.9%, 0%, 77.3%)
CIE-LAB	lab(9.52, 7.58, -23.26)
CIE-LCH	lch(9.52, 24.47, 288.04°)
OKLab	oklab(22.26% -0.0076 -0.0668)
OKLCH	oklch(22.26% 0.067 263.5)
XYZ	xyz(1.2363, 1.0651, 4.1426)
Luminance	0.0106 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#0A193A #3A2B0A

analogous

#0A313A #0A193A #130A3A

triadic

#0A193A #3A0A19 #193A0A

tetradic

#0A193A #3A0A31 #3A2B0A #0A3A13

square

#0A193A #3A0A31 #3A2B0A #0A3A13

split-complementary

#0A193A #3A130A #313A0A

monochromatic

#050B1A #050B1A #0A193A #132F6E #1C46A2

Accessibility & contrast

On white

17.31

#0A193A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.21

#0A193A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #0A193A

17.31:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##0A193A	#FFFFFF	#000000	##FFFFFF
##0A193A	1.00	17.31	1.21	17.31
#FFFFFF	17.31	1.00	21.00	1.00
#000000	1.21	21.00	1.00	21.00
##FFFFFF	17.31	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#071D3B

Deuteranopia (green-blind)

#001839

Tritanopia (blue-blind)

#002126

Achromatopsia (no color)

#1B1B1B

Design tokens & code

CSS

--color: #0a193a;
/* rgb */ color: rgb(10, 25, 58);
/* oklch */ color: oklch(22.3% 0.067 263.5);

Tailwind

colors: {
  custom: {
    50: '#515570',
    500: '#0a193a',
    950: '#000000',
  },
}

SCSS

$custom: #0a193a;
$custom-light: #515570;
$custom-dark: #000000;

JSON

{
  "hex": "#0a193a",
  "rgb": {
    "r": 10,
    "g": 25,
    "b": 58
  },
  "hsl": {
    "h": 221.25,
    "s": 70.588,
    "l": 13.333
  },
  "oklch": {
    "l": 0.22263,
    "c": 0.06721,
    "h": 263.5
  },
  "luminance": 0.01065
}

Semantic roles & 50–950 ramp

primary

#0A193A

secondary

#775F28

accent

#B53AED

background

#F4F4F6

surface

#E7E7EC

border

#C3C3C7

text

#020207

muted

#78787A

Preview Lab

Preview with #0A193A

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

Preview Lab → · Contrast checker → · Palette generator →