#0A1743#0A1743

#0A1743 is a very dark, moderate blue. Relative luminance 0.011; OKLCH L 22.6% C 0.085 H 266.8°. Best body text is #FFFFFF at 17.26:1 contrast (WCAG AA passes).

Color values

HEX	#0A1743
RGB	rgb(10, 23, 67)
HSL	hsl(226, 74%, 15%)
HSV	hsv(226, 85%, 26%)
CMYK	cmyk(85.1%, 65.7%, 0%, 73.7%)
CIE-LAB	lab(9.66, 13.24, -29.43)
CIE-LCH	lch(9.66, 32.27, 294.23°)
OKLab	oklab(22.62% -0.0048 -0.085)
OKLCH	oklch(22.62% 0.085 266.8)
XYZ	xyz(1.4443, 1.0824, 5.4419)
Luminance	0.0108 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Midnight Blue (survey)

#020035

ΔE00 4.76

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#0A1743 #43360A

analogous

#0A3343 #0A1743 #1A0A43

triadic

#0A1743 #430A17 #17430A

tetradic

#0A1743 #430A33 #43360A #0A431A

square

#0A1743 #430A33 #43360A #0A431A

split-complementary

#0A1743 #431A0A #33430A

monochromatic

#04091B #04091B #0A1743 #122978 #1A3CAE

Accessibility & contrast

On white

17.26

#0A1743 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.22

#0A1743 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #0A1743

17.26:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##0A1743	#FFFFFF	#000000	##FFFFFF
##0A1743	1.00	17.26	1.22	17.26
#FFFFFF	17.26	1.00	21.00	1.00
#000000	1.22	21.00	1.00	21.00
##FFFFFF	17.26	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#001E44

Deuteranopia (green-blind)

#001842

Tritanopia (blue-blind)

#00222A

Achromatopsia (no color)

#1B1B1B

Design tokens & code

CSS

--color: #0a1743;
/* rgb */ color: rgb(10, 23, 67);
/* oklch */ color: oklch(22.6% 0.085 266.8);

Tailwind

colors: {
  custom: {
    50: '#545378',
    500: '#0a1743',
    950: '#000000',
  },
}

SCSS

$custom: #0a1743;
$custom-light: #545378;
$custom-dark: #000000;

JSON

{
  "hex": "#0a1743",
  "rgb": {
    "r": 10,
    "g": 23,
    "b": 67
  },
  "hsl": {
    "h": 226.316,
    "s": 74.026,
    "l": 15.098
  },
  "oklch": {
    "l": 0.22617,
    "c": 0.08509,
    "h": 266.8
  },
  "luminance": 0.01083
}

Semantic roles & 50–950 ramp

primary

#0A1743

secondary

#806C29

accent

#C637F1

background

#F5F4F7

surface

#E9E7ED

border

#C5C3C8

text

#030209

muted

#78787B

Preview Lab

Preview with #0A1743

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

Preview Lab → · Contrast checker → · Palette generator →