#0A0643#0A0643

#0A0643 is a very dark, moderate blue. Relative luminance 0.006; OKLCH L 19.3% C 0.107 H 273.2°. Best body text is #FFFFFF at 18.75:1 contrast (WCAG AA passes).

Color values

HEX	#0A0643
RGB	rgb(10, 6, 67)
HSL	hsl(244, 84%, 14%)
HSV	hsv(244, 91%, 26%)
CMYK	cmyk(85.1%, 91%, 0%, 73.7%)
CIE-LAB	lab(5.42, 24.20, -36.38)
CIE-LCH	lch(5.42, 43.69, 303.64°)
OKLab	oklab(19.31% 0.0059 -0.1069)
OKLCH	oklch(19.31% 0.107 273.2)
XYZ	xyz(1.2031, 0.5999, 5.3615)
Luminance	0.0060 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Midnight Blue (survey)

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#0A0643 #3F4306

analogous

#062143 #0A0643 #290643

triadic

#0A0643 #430A06 #06430A

tetradic

#0A0643 #430621 #3F4306 #064329

square

#0A0643 #430621 #3F4306 #064329

split-complementary

#0A0643 #432906 #214306

monochromatic

#04031C #04031C #0A0643 #120B7B #1B10B3

Accessibility & contrast

On white

18.75

#0A0643 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.12

#0A0643 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #0A0643

18.75:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##0A0643	#FFFFFF	#000000	##FFFFFF
##0A0643	1.00	18.75	1.12	18.75
#FFFFFF	18.75	1.00	21.00	1.00
#000000	1.12	21.00	1.00	21.00
##FFFFFF	18.75	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#001545

Deuteranopia (green-blind)

#000F42

Tritanopia (blue-blind)

#001925

Achromatopsia (no color)

#121212

Design tokens & code

CSS

--color: #0a0643;
/* rgb */ color: rgb(10, 6, 67);
/* oklch */ color: oklch(19.3% 0.107 273.2);

Tailwind

colors: {
  custom: {
    50: '#554878',
    500: '#0a0643',
    950: '#000000',
  },
}

SCSS

$custom: #0a0643;
$custom-light: #554878;
$custom-dark: #000000;

JSON

{
  "hex": "#0a0643",
  "rgb": {
    "r": 10,
    "g": 6,
    "b": 67
  },
  "hsl": {
    "h": 243.934,
    "s": 83.562,
    "l": 14.314
  },
  "oklch": {
    "l": 0.19305,
    "c": 0.10709,
    "h": 273.2
  },
  "luminance": 0.006
}

Semantic roles & 50–950 ramp

primary

#0A0643

secondary

#7C8322

accent

#FA2EEC

background

#F5F4F7

surface

#E9E6ED

border

#C5C2C8

text

#030009

muted

#78777B

Preview Lab

Preview with #0A0643

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

Preview Lab → · Contrast checker → · Palette generator →