#0A1B47#0A1B47

#0A1B47 is a very dark, moderate blue. Relative luminance 0.013; OKLCH L 24.0% C 0.086 H 264.7°. Best body text is #FFFFFF at 16.66:1 contrast (WCAG AA passes).

Color values

HEX	#0A1B47
RGB	rgb(10, 27, 71)
HSL	hsl(223, 75%, 16%)
HSV	hsv(223, 86%, 28%)
CMYK	cmyk(85.9%, 62%, 0%, 72.2%)
CIE-LAB	lab(11.30, 11.91, -29.57)
CIE-LCH	lch(11.30, 31.87, 291.94°)
OKLab	oklab(23.96% -0.0079 -0.0853)
OKLCH	oklch(23.96% 0.086 264.7)
XYZ	xyz(1.6540, 1.3031, 6.1244)
Luminance	0.0130 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#0A1B47 #47360A

analogous

#0A3947 #0A1B47 #170A47

triadic

#0A1B47 #470A1B #1B470A

tetradic

#0A1B47 #470A39 #47360A #0A4717

square

#0A1B47 #470A39 #47360A #0A4717

split-complementary

#0A1B47 #47170A #39470A

monochromatic

#040A1B #040A1B #0A1B47 #122F7D #1944B2

Accessibility & contrast

On white

16.66

#0A1B47 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.26

#0A1B47 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #0A1B47

16.66:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##0A1B47	#FFFFFF	#000000	##FFFFFF
##0A1B47	1.00	16.66	1.26	16.66
#FFFFFF	16.66	1.00	21.00	1.00
#000000	1.26	21.00	1.00	21.00
##FFFFFF	16.66	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#002149

Deuteranopia (green-blind)

#001B46

Tritanopia (blue-blind)

#00262D

Achromatopsia (no color)

#1E1E1E

Design tokens & code

CSS

--color: #0a1b47;
/* rgb */ color: rgb(10, 27, 71);
/* oklch */ color: oklch(24.0% 0.086 264.7);

Tailwind

colors: {
  custom: {
    50: '#55567b',
    500: '#0a1b47',
    950: '#000000',
  },
}

SCSS

$custom: #0a1b47;
$custom-light: #55567b;
$custom-dark: #000000;

JSON

{
  "hex": "#0a1b47",
  "rgb": {
    "r": 10,
    "g": 27,
    "b": 71
  },
  "hsl": {
    "h": 223.279,
    "s": 75.309,
    "l": 15.882
  },
  "oklch": {
    "l": 0.23963,
    "c": 0.08565,
    "h": 264.7
  },
  "luminance": 0.01303
}

Semantic roles & 50–950 ramp

primary

#0A1B47

secondary

#846B29

accent

#BE36F2

background

#F5F5F7

surface

#E9E9EE

border

#C5C5C9

text

#030309

muted

#78787B

Preview Lab

Preview with #0A1B47

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

Preview Lab → · Contrast checker → · Palette generator →