#0A0441#0A0441

#0A0441 is a very dark, moderate blue. Relative luminance 0.005; OKLCH L 18.7% C 0.107 H 274.0°. Best body text is #FFFFFF at 18.98:1 contrast (WCAG AA passes).

Color values

HEX	#0A0441
RGB	rgb(10, 4, 65)
HSL	hsl(246, 88%, 14%)
HSV	hsv(246, 94%, 25%)
CMYK	cmyk(84.6%, 93.8%, 0%, 74.5%)
CIE-LAB	lab(4.81, 24.15, -35.94)
CIE-LCH	lch(4.81, 43.30, 303.89°)
OKLab	oklab(18.66% 0.0075 -0.1067)
OKLCH	oklch(18.66% 0.107 274)
XYZ	xyz(1.1224, 0.5329, 5.0437)
Luminance	0.0053 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Night Blue

#040348

ΔE00 1.81

Midnight Blue (survey)

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#0A0441 #3B4104

analogous

#041C41 #0A0441 #280441

triadic

#0A0441 #410A04 #04410A

tetradic

#0A0441 #41041C #3B4104 #044128

square

#0A0441 #41041C #3B4104 #044128

split-complementary

#0A0441 #412804 #1C4104

monochromatic

#04021D #04021D #0A0441 #13087B #1C0BB4

Accessibility & contrast

On white

18.98

#0A0441 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.11

#0A0441 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #0A0441

18.98:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##0A0441	#FFFFFF	#000000	##FFFFFF
##0A0441	1.00	18.98	1.11	18.98
#FFFFFF	18.98	1.00	21.00	1.00
#000000	1.11	21.00	1.00	21.00
##FFFFFF	18.98	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#001343

Deuteranopia (green-blind)

#000D40

Tritanopia (blue-blind)

#001723

Achromatopsia (no color)

#101010

Design tokens & code

CSS

--color: #0a0441;
/* rgb */ color: rgb(10, 4, 65);
/* oklch */ color: oklch(18.7% 0.107 274.0);

Tailwind

colors: {
  custom: {
    50: '#544776',
    500: '#0a0441',
    950: '#000000',
  },
}

SCSS

$custom: #0a0441;
$custom-light: #544776;
$custom-dark: #000000;

JSON

{
  "hex": "#0a0441",
  "rgb": {
    "r": 10,
    "g": 4,
    "b": 65
  },
  "hsl": {
    "h": 245.902,
    "s": 88.406,
    "l": 13.529
  },
  "oklch": {
    "l": 0.1866,
    "c": 0.10693,
    "h": 274
  },
  "luminance": 0.00533
}

Semantic roles & 50–950 ramp

primary

#0A0441

secondary

#78821F

accent

#FF29EA

background

#F5F4F7

surface

#E9E6ED

border

#C5C2C8

text

#030008

muted

#78777B

Preview Lab

Preview with #0A0441

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

Preview Lab → · Contrast checker → · Palette generator →