#0A0338#0A0338

#0A0338 is a very dark, moderate blue. Relative luminance 0.004; OKLCH L 17.2% C 0.096 H 276.9°. Best body text is #FFFFFF at 19.39:1 contrast (WCAG AA passes).

Color values

HEX	#0A0338
RGB	rgb(10, 3, 56)
HSL	hsl(248, 90%, 12%)
HSV	hsv(248, 95%, 22%)
CMYK	cmyk(82.1%, 94.6%, 0%, 78%)
CIE-LAB	lab(3.75, 19.52, -31.16)
CIE-LCH	lch(3.75, 36.77, 302.06°)
OKLab	oklab(17.17% 0.0115 -0.0955)
OKLCH	oklch(17.17% 0.096 276.9)
XYZ	xyz(0.8713, 0.4151, 3.7748)
Luminance	0.0042 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Midnight Blue (survey)

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#0A0338 #313803

analogous

#031738 #0A0338 #250338

triadic

#0A0338 #380A03 #03380A

tetradic

#0A0338 #380317 #313803 #033825

square

#0A0338 #380317 #313803 #033825

split-complementary

#0A0338 #382503 #173803

monochromatic

#05021D #05021D #0A0338 #140672 #1F09AC

Accessibility & contrast

On white

19.39

#0A0338 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.08

#0A0338 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #0A0338

19.39:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##0A0338	#FFFFFF	#000000	##FFFFFF
##0A0338	1.00	19.39	1.08	19.39
#FFFFFF	19.39	1.00	21.00	1.00
#000000	1.08	21.00	1.00	21.00
##FFFFFF	19.39	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#001039

Deuteranopia (green-blind)

#000B37

Tritanopia (blue-blind)

#00131E

Achromatopsia (no color)

#0D0D0D

Design tokens & code

CSS

--color: #0a0338;
/* rgb */ color: rgb(10, 3, 56);
/* oklch */ color: oklch(17.2% 0.096 276.9);

Tailwind

colors: {
  custom: {
    50: '#50476f',
    500: '#0a0338',
    950: '#000000',
  },
}

SCSS

$custom: #0a0338;
$custom-light: #50476f;
$custom-dark: #000000;

JSON

{
  "hex": "#0a0338",
  "rgb": {
    "r": 10,
    "g": 3,
    "b": 56
  },
  "hsl": {
    "h": 247.925,
    "s": 89.831,
    "l": 11.569
  },
  "oklch": {
    "l": 0.17174,
    "c": 0.09623,
    "h": 276.9
  },
  "luminance": 0.00415
}

Semantic roles & 50–950 ramp

primary

#0A0338

secondary

#6E7B1C

accent

#FF29E3

background

#F4F3F6

surface

#E7E5EC

border

#C3C1C7

text

#020007

muted

#78777A

Preview Lab

Preview with #0A0338

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

Preview Lab → · Contrast checker → · Palette generator →