#0A1744#0A1744

#0A1744 is a very dark, moderate blue. Relative luminance 0.011; OKLCH L 22.7% C 0.087 H 266.9°. Best body text is #FFFFFF at 17.23:1 contrast (WCAG AA passes).

Color values

HEX	#0A1744
RGB	rgb(10, 23, 68)
HSL	hsl(227, 74%, 15%)
HSV	hsv(227, 85%, 27%)
CMYK	cmyk(85.3%, 66.2%, 0%, 73.3%)
CIE-LAB	lab(9.76, 13.69, -29.98)
CIE-LCH	lch(9.76, 32.96, 294.55°)
OKLab	oklab(22.72% -0.0047 -0.0866)
OKLCH	oklch(22.72% 0.087 266.9)
XYZ	xyz(1.4746, 1.0945, 5.6013)
Luminance	0.0109 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Midnight Blue (survey)

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#0A1744 #44370A

analogous

#0A3444 #0A1744 #1A0A44

triadic

#0A1744 #440A17 #17440A

tetradic

#0A1744 #440A34 #44370A #0A441A

square

#0A1744 #440A34 #44370A #0A441A

split-complementary

#0A1744 #441A0A #34440A

monochromatic

#04091B #04091B #0A1744 #122979 #1A3BAF

Accessibility & contrast

On white

17.23

#0A1744 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.22

#0A1744 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #0A1744

17.23:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##0A1744	#FFFFFF	#000000	##FFFFFF
##0A1744	1.00	17.23	1.22	17.23
#FFFFFF	17.23	1.00	21.00	1.00
#000000	1.22	21.00	1.00	21.00
##FFFFFF	17.23	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#001E46

Deuteranopia (green-blind)

#001843

Tritanopia (blue-blind)

#00222A

Achromatopsia (no color)

#1B1B1B

Design tokens & code

CSS

--color: #0a1744;
/* rgb */ color: rgb(10, 23, 68);
/* oklch */ color: oklch(22.7% 0.087 266.9);

Tailwind

colors: {
  custom: {
    50: '#545378',
    500: '#0a1744',
    950: '#000000',
  },
}

SCSS

$custom: #0a1744;
$custom-light: #545378;
$custom-dark: #000000;

JSON

{
  "hex": "#0a1744",
  "rgb": {
    "r": 10,
    "g": 23,
    "b": 68
  },
  "hsl": {
    "h": 226.552,
    "s": 74.359,
    "l": 15.294
  },
  "oklch": {
    "l": 0.22718,
    "c": 0.0867,
    "h": 266.9
  },
  "luminance": 0.01095
}

Semantic roles & 50–950 ramp

primary

#0A1744

secondary

#816D29

accent

#C737F1

background

#F5F4F7

surface

#E9E7ED

border

#C5C3C8

text

#030209

muted

#78787B

Preview Lab

Preview with #0A1744

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

Preview Lab → · Contrast checker → · Palette generator →