#0A1A4E#0A1A4E

#0A1A4E is a very dark, moderate blue. Relative luminance 0.014; OKLCH L 24.4% C 0.098 H 266.0°. Best body text is #FFFFFF at 16.53:1 contrast (WCAG AA passes).

Color values

HEX	#0A1A4E
RGB	rgb(10, 26, 78)
HSL	hsl(226, 77%, 17%)
HSV	hsv(226, 87%, 31%)
CMYK	cmyk(87.2%, 66.7%, 0%, 69.4%)
CIE-LAB	lab(11.64, 15.81, -33.84)
CIE-LCH	lch(11.64, 37.36, 295.04°)
OKLab	oklab(24.43% -0.0068 -0.0979)
OKLCH	oklch(24.43% 0.098 266)
XYZ	xyz(1.8692, 1.3532, 7.3689)
Luminance	0.0135 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Midnight Blue (survey)

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#0A1A4E #4E3E0A

analogous

#0A3C4E #0A1A4E #1C0A4E

triadic

#0A1A4E #4E0A1A #1A4E0A

tetradic

#0A1A4E #4E0A3C #4E3E0A #0A4E1C

square

#0A1A4E #4E0A3C #4E3E0A #0A4E1C

split-complementary

#0A1A4E #4E1C0A #3C4E0A

monochromatic

#03091B #03091B #0A1A4E #112C84 #183EBA

Accessibility & contrast

On white

16.53

#0A1A4E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.27

#0A1A4E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #0A1A4E

16.53:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##0A1A4E	#FFFFFF	#000000	##FFFFFF
##0A1A4E	1.00	16.53	1.27	16.53
#FFFFFF	16.53	1.00	21.00	1.00
#000000	1.27	21.00	1.00	21.00
##FFFFFF	16.53	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#002250

Deuteranopia (green-blind)

#001C4D

Tritanopia (blue-blind)

#002731

Achromatopsia (no color)

#1F1F1F

Design tokens & code

CSS

--color: #0a1a4e;
/* rgb */ color: rgb(10, 26, 78);
/* oklch */ color: oklch(24.4% 0.098 266.0);

Tailwind

colors: {
  custom: {
    50: '#575680',
    500: '#0a1a4e',
    950: '#000000',
  },
}

SCSS

$custom: #0a1a4e;
$custom-light: #575680;
$custom-dark: #000000;

JSON

{
  "hex": "#0a1a4e",
  "rgb": {
    "r": 10,
    "g": 26,
    "b": 78
  },
  "hsl": {
    "h": 225.882,
    "s": 77.273,
    "l": 17.255
  },
  "oklch": {
    "l": 0.24426,
    "c": 0.09811,
    "h": 266
  },
  "luminance": 0.01353
}

Semantic roles & 50–950 ramp

primary

#0A1A4E

secondary

#8B7429

accent

#C734F4

background

#F5F5F7

surface

#E9E8EE

border

#C5C4C9

text

#04030A

muted

#79787C

Preview Lab

Preview with #0A1A4E

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

Preview Lab → · Contrast checker → · Palette generator →