#0A1443#0A1443

#0A1443 is a very dark, moderate blue. Relative luminance 0.010; OKLCH L 21.9% C 0.089 H 268.5°. Best body text is #FFFFFF at 17.59:1 contrast (WCAG AA passes).

Color values

HEX	#0A1443
RGB	rgb(10, 20, 67)
HSL	hsl(229, 74%, 15%)
HSV	hsv(229, 85%, 26%)
CMYK	cmyk(85.1%, 70.1%, 0%, 73.7%)
CIE-LAB	lab(8.74, 15.59, -30.93)
CIE-LCH	lch(8.74, 34.64, 296.74°)
OKLab	oklab(21.93% -0.0024 -0.0894)
OKLCH	oklch(21.93% 0.089 268.5)
XYZ	xyz(1.3881, 0.9699, 5.4232)
Luminance	0.0097 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Midnight Blue (survey)

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#0A1443 #43390A

analogous

#0A3043 #0A1443 #1D0A43

triadic

#0A1443 #430A14 #14430A

tetradic

#0A1443 #430A30 #43390A #0A431D

square

#0A1443 #430A30 #43390A #0A431D

split-complementary

#0A1443 #431D0A #30430A

monochromatic

#04081B #04081B #0A1443 #122478 #1A34AE

Accessibility & contrast

On white

17.59

#0A1443 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.19

#0A1443 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #0A1443

17.59:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##0A1443	#FFFFFF	#000000	##FFFFFF
##0A1443	1.00	17.59	1.19	17.59
#FFFFFF	17.59	1.00	21.00	1.00
#000000	1.19	21.00	1.00	21.00
##FFFFFF	17.59	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#001C45

Deuteranopia (green-blind)

#001642

Tritanopia (blue-blind)

#002029

Achromatopsia (no color)

#191919

Design tokens & code

CSS

--color: #0a1443;
/* rgb */ color: rgb(10, 20, 67);
/* oklch */ color: oklch(21.9% 0.089 268.5);

Tailwind

colors: {
  custom: {
    50: '#545178',
    500: '#0a1443',
    950: '#000000',
  },
}

SCSS

$custom: #0a1443;
$custom-light: #545178;
$custom-dark: #000000;

JSON

{
  "hex": "#0a1443",
  "rgb": {
    "r": 10,
    "g": 20,
    "b": 67
  },
  "hsl": {
    "h": 229.474,
    "s": 74.026,
    "l": 15.098
  },
  "oklch": {
    "l": 0.21932,
    "c": 0.08945,
    "h": 268.5
  },
  "luminance": 0.0097
}

Semantic roles & 50–950 ramp

primary

#0A1443

secondary

#807129

accent

#D037F1

background

#F5F4F7

surface

#E9E7ED

border

#C5C3C8

text

#030209

muted

#78787B

Preview Lab

Preview with #0A1443

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

Preview Lab → · Contrast checker → · Palette generator →