#0A1643#0A1643

#0A1643 is a very dark, moderate blue. Relative luminance 0.010; OKLCH L 22.4% C 0.087 H 267.4°. Best body text is #FFFFFF at 17.37:1 contrast (WCAG AA passes).

Color values

HEX	#0A1643
RGB	rgb(10, 22, 67)
HSL	hsl(227, 74%, 15%)
HSV	hsv(227, 85%, 26%)
CMYK	cmyk(85.1%, 67.2%, 0%, 73.7%)
CIE-LAB	lab(9.35, 14.03, -29.94)
CIE-LCH	lch(9.35, 33.06, 295.11°)
OKLab	oklab(22.38% -0.004 -0.0865)
OKLCH	oklch(22.38% 0.087 267.4)
XYZ	xyz(1.4249, 1.0434, 5.4354)
Luminance	0.0104 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Midnight Blue (survey)

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#0A1643 #43370A

analogous

#0A3343 #0A1643 #1A0A43

triadic

#0A1643 #430A16 #16430A

tetradic

#0A1643 #430A33 #43370A #0A431A

square

#0A1643 #430A33 #43370A #0A431A

split-complementary

#0A1643 #431A0A #33430A

monochromatic

#04091B #04091B #0A1643 #122778 #1A39AE

Accessibility & contrast

On white

17.37

#0A1643 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.21

#0A1643 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #0A1643

17.37:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##0A1643	#FFFFFF	#000000	##FFFFFF
##0A1643	1.00	17.37	1.21	17.37
#FFFFFF	17.37	1.00	21.00	1.00
#000000	1.21	21.00	1.00	21.00
##FFFFFF	17.37	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#001D44

Deuteranopia (green-blind)

#001842

Tritanopia (blue-blind)

#002129

Achromatopsia (no color)

#1A1A1A

Design tokens & code

CSS

--color: #0a1643;
/* rgb */ color: rgb(10, 22, 67);
/* oklch */ color: oklch(22.4% 0.087 267.4);

Tailwind

colors: {
  custom: {
    50: '#545278',
    500: '#0a1643',
    950: '#000000',
  },
}

SCSS

$custom: #0a1643;
$custom-light: #545278;
$custom-dark: #000000;

JSON

{
  "hex": "#0a1643",
  "rgb": {
    "r": 10,
    "g": 22,
    "b": 67
  },
  "hsl": {
    "h": 227.368,
    "s": 74.026,
    "l": 15.098
  },
  "oklch": {
    "l": 0.22384,
    "c": 0.08656,
    "h": 267.4
  },
  "luminance": 0.01044
}

Semantic roles & 50–950 ramp

primary

#0A1643

secondary

#806E29

accent

#CA37F1

background

#F5F4F7

surface

#E9E7ED

border

#C5C3C8

text

#030209

muted

#78787B

Preview Lab

Preview with #0A1643

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

Preview Lab → · Contrast checker → · Palette generator →