#0A0347#0A0347

#0A0347 is a very dark, moderate blue. Relative luminance 0.006; OKLCH L 19.3% C 0.116 H 272.9°. Best body text is #FFFFFF at 18.80:1 contrast (WCAG AA passes).

Color values

HEX	#0A0347
RGB	rgb(10, 3, 71)
HSL	hsl(246, 92%, 15%)
HSV	hsv(246, 96%, 28%)
CMYK	cmyk(85.9%, 95.8%, 0%, 72.2%)
CIE-LAB	lab(5.28, 27.69, -39.44)
CIE-LCH	lch(5.28, 48.19, 305.07°)
OKLab	oklab(19.35% 0.0059 -0.1159)
OKLCH	oklch(19.35% 0.116 272.9)
XYZ	xyz(1.2947, 0.5844, 6.0046)
Luminance	0.0059 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Midnight Blue (survey)

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#0A0347 #404703

analogous

#031E47 #0A0347 #2C0347

triadic

#0A0347 #470A03 #03470A

tetradic

#0A0347 #47031E #404703 #03472C

square

#0A0347 #47031E #404703 #03472C

split-complementary

#0A0347 #472C03 #1E4703

monochromatic

#04011D #04011D #0A0347 #120582 #1B08BC

Accessibility & contrast

On white

18.80

#0A0347 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.12

#0A0347 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #0A0347

18.80:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##0A0347	#FFFFFF	#000000	##FFFFFF
##0A0347	1.00	18.80	1.12	18.80
#FFFFFF	18.80	1.00	21.00	1.00
#000000	1.12	21.00	1.00	21.00
##FFFFFF	18.80	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#001549

Deuteranopia (green-blind)

#000E46

Tritanopia (blue-blind)

#001926

Achromatopsia (no color)

#121212

Design tokens & code

CSS

--color: #0a0347;
/* rgb */ color: rgb(10, 3, 71);
/* oklch */ color: oklch(19.3% 0.116 272.9);

Tailwind

colors: {
  custom: {
    50: '#57467b',
    500: '#0a0347',
    950: '#000000',
  },
}

SCSS

$custom: #0a0347;
$custom-light: #57467b;
$custom-dark: #000000;

JSON

{
  "hex": "#0a0347",
  "rgb": {
    "r": 10,
    "g": 3,
    "b": 71
  },
  "hsl": {
    "h": 246.176,
    "s": 91.892,
    "l": 14.51
  },
  "oklch": {
    "l": 0.19347,
    "c": 0.11604,
    "h": 272.9
  },
  "luminance": 0.00585
}

Semantic roles & 50–950 ramp

primary

#0A0347

secondary

#7D881E

accent

#FF29E9

background

#F5F3F7

surface

#E9E5EE

border

#C5C1C9

text

#040009

muted

#79767B

Preview Lab

Preview with #0A0347

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

Preview Lab → · Contrast checker → · Palette generator →