#0A1644#0A1644

#0A1644 is a very dark, moderate blue. Relative luminance 0.011; OKLCH L 22.5% C 0.088 H 267.4°. Best body text is #FFFFFF at 17.34:1 contrast (WCAG AA passes).

Color values

HEX	#0A1644
RGB	rgb(10, 22, 68)
HSL	hsl(228, 74%, 15%)
HSV	hsv(228, 85%, 27%)
CMYK	cmyk(85.3%, 67.6%, 0%, 73.3%)
CIE-LAB	lab(9.45, 14.47, -30.48)
CIE-LCH	lch(9.45, 33.74, 295.40°)
OKLab	oklab(22.49% -0.0039 -0.0881)
OKLCH	oklch(22.49% 0.088 267.4)
XYZ	xyz(1.4551, 1.0555, 5.5948)
Luminance	0.0106 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Midnight Blue (survey)

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#0A1644 #44380A

analogous

#0A3344 #0A1644 #1B0A44

triadic

#0A1644 #440A16 #16440A

tetradic

#0A1644 #440A33 #44380A #0A441B

square

#0A1644 #440A33 #44380A #0A441B

split-complementary

#0A1644 #441B0A #33440A

monochromatic

#04091B #04091B #0A1644 #122779 #1A39AF

Accessibility & contrast

On white

17.34

#0A1644 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.21

#0A1644 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #0A1644

17.34:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##0A1644	#FFFFFF	#000000	##FFFFFF
##0A1644	1.00	17.34	1.21	17.34
#FFFFFF	17.34	1.00	21.00	1.00
#000000	1.21	21.00	1.00	21.00
##FFFFFF	17.34	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#001D46

Deuteranopia (green-blind)

#001843

Tritanopia (blue-blind)

#00222A

Achromatopsia (no color)

#1A1A1A

Design tokens & code

CSS

--color: #0a1644;
/* rgb */ color: rgb(10, 22, 68);
/* oklch */ color: oklch(22.5% 0.088 267.4);

Tailwind

colors: {
  custom: {
    50: '#545278',
    500: '#0a1644',
    950: '#000000',
  },
}

SCSS

$custom: #0a1644;
$custom-light: #545278;
$custom-dark: #000000;

JSON

{
  "hex": "#0a1644",
  "rgb": {
    "r": 10,
    "g": 22,
    "b": 68
  },
  "hsl": {
    "h": 227.586,
    "s": 74.359,
    "l": 15.294
  },
  "oklch": {
    "l": 0.22487,
    "c": 0.08815,
    "h": 267.4
  },
  "luminance": 0.01056
}

Semantic roles & 50–950 ramp

primary

#0A1644

secondary

#816F29

accent

#CA37F1

background

#F5F4F7

surface

#E9E7ED

border

#C5C3C8

text

#030209

muted

#78787B

Preview Lab

Preview with #0A1644

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

Preview Lab → · Contrast checker → · Palette generator →