#0A1047#0A1047

#0A1047 is a very dark, moderate blue. Relative luminance 0.009; OKLCH L 21.6% C 0.101 H 270.0°. Best body text is #FFFFFF at 17.83:1 contrast (WCAG AA passes).

Color values

HEX	#0A1047
RGB	rgb(10, 16, 71)
HSL	hsl(234, 75%, 16%)
HSV	hsv(234, 86%, 28%)
CMYK	cmyk(85.9%, 77.5%, 0%, 72.2%)
CIE-LAB	lab(8.04, 20.32, -34.90)
CIE-LCH	lch(8.04, 40.38, 300.21°)
OKLab	oklab(21.55% 0 -0.101)
OKLCH	oklch(21.55% 0.101 270)
XYZ	xyz(1.4474, 0.8899, 6.0555)
Luminance	0.0089 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Midnight Blue (survey)

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#0A1047 #47410A

analogous

#0A2E47 #0A1047 #220A47

triadic

#0A1047 #470A10 #10470A

tetradic

#0A1047 #470A2E #47410A #0A4722

square

#0A1047 #470A2E #47410A #0A4722

split-complementary

#0A1047 #47220A #2E470A

monochromatic

#04061B #04061B #0A1047 #121C7D #1928B2

Accessibility & contrast

On white

17.83

#0A1047 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.18

#0A1047 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #0A1047

17.83:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##0A1047	#FFFFFF	#000000	##FFFFFF
##0A1047	1.00	17.83	1.18	17.83
#FFFFFF	17.83	1.00	21.00	1.00
#000000	1.18	21.00	1.00	21.00
##FFFFFF	17.83	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#001B49

Deuteranopia (green-blind)

#001546

Tritanopia (blue-blind)

#001F2A

Achromatopsia (no color)

#181818

Design tokens & code

CSS

--color: #0a1047;
/* rgb */ color: rgb(10, 16, 71);
/* oklch */ color: oklch(21.6% 0.101 270.0);

Tailwind

colors: {
  custom: {
    50: '#564e7b',
    500: '#0a1047',
    950: '#000000',
  },
}

SCSS

$custom: #0a1047;
$custom-light: #564e7b;
$custom-dark: #000000;

JSON

{
  "hex": "#0a1047",
  "rgb": {
    "r": 10,
    "g": 16,
    "b": 71
  },
  "hsl": {
    "h": 234.098,
    "s": 75.309,
    "l": 15.882
  },
  "oklch": {
    "l": 0.21553,
    "c": 0.10103,
    "h": 270
  },
  "luminance": 0.0089
}

Semantic roles & 50–950 ramp

primary

#0A1047

secondary

#847B29

accent

#DF36F2

background

#F5F4F7

surface

#E9E7EE

border

#C5C3C9

text

#030109

muted

#78777B

Preview Lab

Preview with #0A1047

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

Preview Lab → · Contrast checker → · Palette generator →