#0A1647#0A1647

#0A1647 is a very dark, moderate blue. Relative luminance 0.011; OKLCH L 22.8% C 0.093 H 267.6°. Best body text is #FFFFFF at 17.23:1 contrast (WCAG AA passes).

Color values

HEX	#0A1647
RGB	rgb(10, 22, 71)
HSL	hsl(228, 75%, 16%)
HSV	hsv(228, 86%, 28%)
CMYK	cmyk(85.9%, 69%, 0%, 72.2%)
CIE-LAB	lab(9.74, 15.80, -32.10)
CIE-LCH	lch(9.74, 35.78, 296.21°)
OKLab	oklab(22.8% -0.004 -0.0928)
OKLCH	oklch(22.8% 0.093 267.6)
XYZ	xyz(1.5490, 1.0931, 6.0894)
Luminance	0.0109 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Midnight Blue (survey)

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#0A1647 #473B0A

analogous

#0A3447 #0A1647 #1C0A47

triadic

#0A1647 #470A16 #16470A

tetradic

#0A1647 #470A34 #473B0A #0A471C

square

#0A1647 #470A34 #473B0A #0A471C

split-complementary

#0A1647 #471C0A #34470A

monochromatic

#04081B #04081B #0A1647 #12277D #1937B2

Accessibility & contrast

On white

17.23

#0A1647 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.22

#0A1647 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #0A1647

17.23:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##0A1647	#FFFFFF	#000000	##FFFFFF
##0A1647	1.00	17.23	1.22	17.23
#FFFFFF	17.23	1.00	21.00	1.00
#000000	1.22	21.00	1.00	21.00
##FFFFFF	17.23	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#001E49

Deuteranopia (green-blind)

#001846

Tritanopia (blue-blind)

#00232C

Achromatopsia (no color)

#1B1B1B

Design tokens & code

CSS

--color: #0a1647;
/* rgb */ color: rgb(10, 22, 71);
/* oklch */ color: oklch(22.8% 0.093 267.6);

Tailwind

colors: {
  custom: {
    50: '#55527b',
    500: '#0a1647',
    950: '#000000',
  },
}

SCSS

$custom: #0a1647;
$custom-light: #55527b;
$custom-dark: #000000;

JSON

{
  "hex": "#0a1647",
  "rgb": {
    "r": 10,
    "g": 22,
    "b": 71
  },
  "hsl": {
    "h": 228.197,
    "s": 75.309,
    "l": 15.882
  },
  "oklch": {
    "l": 0.22801,
    "c": 0.09288,
    "h": 267.6
  },
  "luminance": 0.01093
}

Semantic roles & 50–950 ramp

primary

#0A1647

secondary

#847229

accent

#CD36F2

background

#F5F4F7

surface

#E9E7EE

border

#C5C3C9

text

#030209

muted

#78787B

Preview Lab

Preview with #0A1647

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

Preview Lab → · Contrast checker → · Palette generator →