#0A1747#0A1747

#0A1747 is a very dark, moderate blue. Relative luminance 0.011; OKLCH L 23.0% C 0.091 H 267.1°. Best body text is #FFFFFF at 17.12:1 contrast (WCAG AA passes).

Color values

HEX	#0A1747
RGB	rgb(10, 23, 71)
HSL	hsl(227, 75%, 16%)
HSV	hsv(227, 86%, 28%)
CMYK	cmyk(85.9%, 67.6%, 0%, 72.2%)
CIE-LAB	lab(10.05, 15.03, -31.60)
CIE-LCH	lch(10.05, 34.99, 295.43°)
OKLab	oklab(23.03% -0.0047 -0.0913)
OKLCH	oklch(23.03% 0.091 267.1)
XYZ	xyz(1.5685, 1.1321, 6.0959)
Luminance	0.0113 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Midnight Blue (survey)

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#0A1747 #473A0A

analogous

#0A3547 #0A1747 #1B0A47

triadic

#0A1747 #470A17 #17470A

tetradic

#0A1747 #470A35 #473A0A #0A471B

square

#0A1747 #470A35 #473A0A #0A471B

split-complementary

#0A1747 #471B0A #35470A

monochromatic

#04091B #04091B #0A1747 #12287D #193AB2

Accessibility & contrast

On white

17.12

#0A1747 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.23

#0A1747 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #0A1747

17.12:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##0A1747	#FFFFFF	#000000	##FFFFFF
##0A1747	1.00	17.12	1.23	17.12
#FFFFFF	17.12	1.00	21.00	1.00
#000000	1.23	21.00	1.00	21.00
##FFFFFF	17.12	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#001E49

Deuteranopia (green-blind)

#001946

Tritanopia (blue-blind)

#00232C

Achromatopsia (no color)

#1C1C1C

Design tokens & code

CSS

--color: #0a1747;
/* rgb */ color: rgb(10, 23, 71);
/* oklch */ color: oklch(23.0% 0.091 267.1);

Tailwind

colors: {
  custom: {
    50: '#55537b',
    500: '#0a1747',
    950: '#000000',
  },
}

SCSS

$custom: #0a1747;
$custom-light: #55537b;
$custom-dark: #000000;

JSON

{
  "hex": "#0a1747",
  "rgb": {
    "r": 10,
    "g": 23,
    "b": 71
  },
  "hsl": {
    "h": 227.213,
    "s": 75.309,
    "l": 15.882
  },
  "oklch": {
    "l": 0.23026,
    "c": 0.09146,
    "h": 267.1
  },
  "luminance": 0.01132
}

Semantic roles & 50–950 ramp

primary

#0A1747

secondary

#847129

accent

#CA36F2

background

#F5F4F7

surface

#E9E7EE

border

#C5C3C9

text

#030209

muted

#78787B

Preview Lab

Preview with #0A1747

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

Preview Lab → · Contrast checker → · Palette generator →