#0A1841#0A1841

#0A1841 is a very dark, moderate blue. Relative luminance 0.011; OKLCH L 22.7% C 0.080 H 265.9°. Best body text is #FFFFFF at 17.22:1 contrast (WCAG AA passes).

Color values

HEX	#0A1841
RGB	rgb(10, 24, 65)
HSL	hsl(225, 73%, 15%)
HSV	hsv(225, 85%, 25%)
CMYK	cmyk(84.6%, 63.1%, 0%, 74.5%)
CIE-LAB	lab(9.79, 11.55, -27.80)
CIE-LCH	lch(9.79, 30.11, 292.56°)
OKLab	oklab(22.66% -0.0058 -0.0802)
OKLCH	oklch(22.66% 0.08 265.9)
XYZ	xyz(1.4056, 1.0993, 5.1381)
Luminance	0.0110 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#0A1841 #41330A

analogous

#0A3441 #0A1841 #180A41

triadic

#0A1841 #410A18 #18410A

tetradic

#0A1841 #410A34 #41330A #0A4118

square

#0A1841 #410A34 #41330A #0A4118

split-complementary

#0A1841 #41180A #34410A

monochromatic

#040A1B #040A1B #0A1841 #122C76 #1A3FAB

Accessibility & contrast

On white

17.22

#0A1841 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.22

#0A1841 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #0A1841

17.22:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##0A1841	#FFFFFF	#000000	##FFFFFF
##0A1841	1.00	17.22	1.22	17.22
#FFFFFF	17.22	1.00	21.00	1.00
#000000	1.22	21.00	1.00	21.00
##FFFFFF	17.22	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#001E42

Deuteranopia (green-blind)

#001940

Tritanopia (blue-blind)

#002229

Achromatopsia (no color)

#1B1B1B

Design tokens & code

CSS

--color: #0a1841;
/* rgb */ color: rgb(10, 24, 65);
/* oklch */ color: oklch(22.7% 0.080 265.9);

Tailwind

colors: {
  custom: {
    50: '#535476',
    500: '#0a1841',
    950: '#000000',
  },
}

SCSS

$custom: #0a1841;
$custom-light: #535476;
$custom-dark: #000000;

JSON

{
  "hex": "#0a1841",
  "rgb": {
    "r": 10,
    "g": 24,
    "b": 65
  },
  "hsl": {
    "h": 224.727,
    "s": 73.333,
    "l": 14.706
  },
  "oklch": {
    "l": 0.22659,
    "c": 0.08037,
    "h": 265.9
  },
  "luminance": 0.01099
}

Semantic roles & 50–950 ramp

primary

#0A1841

secondary

#7E6829

accent

#C138F0

background

#F5F4F7

surface

#E8E7ED

border

#C4C3C8

text

#030208

muted

#78787B

Preview Lab

Preview with #0A1841

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

Preview Lab → · Contrast checker → · Palette generator →