#0A0A47#0A0A47

#0A0A47 is a very dark, moderate blue. Relative luminance 0.007; OKLCH L 20.5% C 0.108 H 271.6°. Best body text is #FFFFFF at 18.30:1 contrast (WCAG AA passes).

Color values

HEX	#0A0A47
RGB	rgb(10, 10, 71)
HSL	hsl(240, 75%, 16%)
HSV	hsv(240, 86%, 28%)
CMYK	cmyk(85.9%, 85.9%, 0%, 72.2%)
CIE-LAB	lab(6.65, 24.07, -37.18)
CIE-LCH	lch(6.65, 44.29, 302.92°)
OKLab	oklab(20.5% 0.003 -0.108)
OKLCH	oklch(20.5% 0.108 271.6)
XYZ	xyz(1.3707, 0.7364, 6.0299)
Luminance	0.0074 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Midnight Blue (survey)

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#0A0A47 #47470A

analogous

#0A2847 #0A0A47 #280A47

triadic

#0A0A47 #470A0A #0A470A

tetradic

#0A0A47 #470A28 #47470A #0A4728

square

#0A0A47 #470A28 #47470A #0A4728

split-complementary

#0A0A47 #47280A #28470A

monochromatic

#04041B #04041B #0A0A47 #12127D #1919B2

Accessibility & contrast

On white

18.30

#0A0A47 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.15

#0A0A47 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #0A0A47

18.30:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##0A0A47	#FFFFFF	#000000	##FFFFFF
##0A0A47	1.00	18.30	1.15	18.30
#FFFFFF	18.30	1.00	21.00	1.00
#000000	1.15	21.00	1.00	21.00
##FFFFFF	18.30	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#001849

Deuteranopia (green-blind)

#001246

Tritanopia (blue-blind)

#001C28

Achromatopsia (no color)

#151515

Design tokens & code

CSS

--color: #0a0a47;
/* rgb */ color: rgb(10, 10, 71);
/* oklch */ color: oklch(20.5% 0.108 271.6);

Tailwind

colors: {
  custom: {
    50: '#564a7b',
    500: '#0a0a47',
    950: '#000000',
  },
}

SCSS

$custom: #0a0a47;
$custom-light: #564a7b;
$custom-dark: #000000;

JSON

{
  "hex": "#0a0a47",
  "rgb": {
    "r": 10,
    "g": 10,
    "b": 71
  },
  "hsl": {
    "h": 240,
    "s": 75.309,
    "l": 15.882
  },
  "oklch": {
    "l": 0.20504,
    "c": 0.10809,
    "h": 271.6
  },
  "luminance": 0.00737
}

Semantic roles & 50–950 ramp

primary

#0A0A47

secondary

#848429

accent

#F236F2

background

#F5F4F7

surface

#E9E7EE

border

#C5C3C9

text

#040109

muted

#79777B

Preview Lab

Preview with #0A0A47

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

Preview Lab → · Contrast checker → · Palette generator →