#0A0641#0A0641

#0A0641 is a very dark, moderate blue. Relative luminance 0.006; OKLCH L 19.0% C 0.104 H 273.6°. Best body text is #FFFFFF at 18.83:1 contrast (WCAG AA passes).

Color values

HEX	#0A0641
RGB	rgb(10, 6, 65)
HSL	hsl(244, 83%, 14%)
HSV	hsv(244, 91%, 25%)
CMYK	cmyk(84.6%, 90.8%, 0%, 74.5%)
CIE-LAB	lab(5.21, 23.19, -35.30)
CIE-LCH	lch(5.21, 42.23, 303.30°)
OKLab	oklab(19.03% 0.0065 -0.1041)
OKLCH	oklch(19.03% 0.104 273.6)
XYZ	xyz(1.1441, 0.5763, 5.0509)
Luminance	0.0058 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Night Blue

#040348

ΔE00 2.12

Midnight Blue (survey)

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#0A0641 #3D4106

analogous

#062041 #0A0641 #280641

triadic

#0A0641 #410A06 #06410A

tetradic

#0A0641 #410620 #3D4106 #064128

square

#0A0641 #410620 #3D4106 #064128

split-complementary

#0A0641 #412806 #204106

monochromatic

#04031C #04031C #0A0641 #130B79 #1B10B1

Accessibility & contrast

On white

18.83

#0A0641 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.12

#0A0641 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #0A0641

18.83:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##0A0641	#FFFFFF	#000000	##FFFFFF
##0A0641	1.00	18.83	1.12	18.83
#FFFFFF	18.83	1.00	21.00	1.00
#000000	1.12	21.00	1.00	21.00
##FFFFFF	18.83	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#001443

Deuteranopia (green-blind)

#000E40

Tritanopia (blue-blind)

#001824

Achromatopsia (no color)

#111111

Design tokens & code

CSS

--color: #0a0641;
/* rgb */ color: rgb(10, 6, 65);
/* oklch */ color: oklch(19.0% 0.104 273.6);

Tailwind

colors: {
  custom: {
    50: '#544876',
    500: '#0a0641',
    950: '#000000',
  },
}

SCSS

$custom: #0a0641;
$custom-light: #544876;
$custom-dark: #000000;

JSON

{
  "hex": "#0a0641",
  "rgb": {
    "r": 10,
    "g": 6,
    "b": 65
  },
  "hsl": {
    "h": 244.068,
    "s": 83.099,
    "l": 13.922
  },
  "oklch": {
    "l": 0.1903,
    "c": 0.10435,
    "h": 273.6
  },
  "luminance": 0.00576
}

Semantic roles & 50–950 ramp

primary

#0A0641

secondary

#7A8122

accent

#F92EEC

background

#F5F4F7

surface

#E9E6ED

border

#C5C2C8

text

#030008

muted

#78777B

Preview Lab

Preview with #0A0641

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

Preview Lab → · Contrast checker → · Palette generator →