#0A1547#0A1547

#0A1547 is a very dark, moderate blue. Relative luminance 0.011; OKLCH L 22.6% C 0.094 H 268.0°. Best body text is #FFFFFF at 17.34:1 contrast (WCAG AA passes).

Color values

HEX	#0A1547
RGB	rgb(10, 21, 71)
HSL	hsl(229, 75%, 16%)
HSV	hsv(229, 86%, 28%)
CMYK	cmyk(85.9%, 70.4%, 0%, 72.2%)
CIE-LAB	lab(9.45, 16.57, -32.58)
CIE-LCH	lch(9.45, 36.56, 296.96°)
OKLab	oklab(22.58% -0.0032 -0.0942)
OKLCH	oklch(22.58% 0.094 268)
XYZ	xyz(1.5303, 1.0556, 6.0831)
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

#0A1547 #473C0A

analogous

#0A3347 #0A1547 #1D0A47

triadic

#0A1547 #470A15 #15470A

tetradic

#0A1547 #470A33 #473C0A #0A471D

square

#0A1547 #470A33 #473C0A #0A471D

split-complementary

#0A1547 #471D0A #33470A

monochromatic

#04081B #04081B #0A1547 #12257D #1935B2

Accessibility & contrast

On white

17.34

#0A1547 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.21

#0A1547 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #0A1547

17.34:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##0A1547	#FFFFFF	#000000	##FFFFFF
##0A1547	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)

#001D49

Deuteranopia (green-blind)

#001846

Tritanopia (blue-blind)

#00222B

Achromatopsia (no color)

#1A1A1A

Design tokens & code

CSS

--color: #0a1547;
/* rgb */ color: rgb(10, 21, 71);
/* oklch */ color: oklch(22.6% 0.094 268.0);

Tailwind

colors: {
  custom: {
    50: '#55527b',
    500: '#0a1547',
    950: '#000000',
  },
}

SCSS

$custom: #0a1547;
$custom-light: #55527b;
$custom-dark: #000000;

JSON

{
  "hex": "#0a1547",
  "rgb": {
    "r": 10,
    "g": 21,
    "b": 71
  },
  "hsl": {
    "h": 229.18,
    "s": 75.309,
    "l": 15.882
  },
  "oklch": {
    "l": 0.22581,
    "c": 0.09429,
    "h": 268
  },
  "luminance": 0.01056
}

Semantic roles & 50–950 ramp

primary

#0A1547

secondary

#847429

accent

#D036F2

background

#F5F4F7

surface

#E9E7EE

border

#C5C3C9

text

#030209

muted

#78787B

Preview Lab

Preview with #0A1547

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

Preview Lab → · Contrast checker → · Palette generator →