#0A0B41#0A0B41

#0A0B41 is a very dark, moderate blue. Relative luminance 0.007; OKLCH L 19.9% C 0.098 H 272.2°. Best body text is #FFFFFF at 18.47:1 contrast (WCAG AA passes).

Color values

HEX	#0A0B41
RGB	rgb(10, 11, 65)
HSL	hsl(239, 73%, 15%)
HSV	hsv(239, 85%, 25%)
CMYK	cmyk(84.6%, 83.1%, 0%, 74.5%)
CIE-LAB	lab(6.19, 20.73, -33.69)
CIE-LCH	lch(6.19, 39.56, 301.61°)
OKLab	oklab(19.9% 0.0039 -0.0983)
OKLCH	oklch(19.9% 0.098 272.2)
XYZ	xyz(1.1987, 0.6854, 5.0691)
Luminance	0.0069 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Navy Blue (survey)

#001146

ΔE00 2.52

Midnight Blue (survey)

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#0A0B41 #41400A

analogous

#0A2741 #0A0B41 #250A41

triadic

#0A0B41 #410A0B #0B410A

tetradic

#0A0B41 #410A27 #41400A #0A4125

square

#0A0B41 #410A27 #41400A #0A4125

split-complementary

#0A0B41 #41250A #27410A

monochromatic

#04041B #04041B #0A0B41 #121476 #1A1DAB

Accessibility & contrast

On white

18.47

#0A0B41 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.14

#0A0B41 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #0A0B41

18.47:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##0A0B41	#FFFFFF	#000000	##FFFFFF
##0A0B41	1.00	18.47	1.14	18.47
#FFFFFF	18.47	1.00	21.00	1.00
#000000	1.14	21.00	1.00	21.00
##FFFFFF	18.47	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#001643

Deuteranopia (green-blind)

#001140

Tritanopia (blue-blind)

#001B25

Achromatopsia (no color)

#141414

Design tokens & code

CSS

--color: #0a0b41;
/* rgb */ color: rgb(10, 11, 65);
/* oklch */ color: oklch(19.9% 0.098 272.2);

Tailwind

colors: {
  custom: {
    50: '#544b76',
    500: '#0a0b41',
    950: '#000000',
  },
}

SCSS

$custom: #0a0b41;
$custom-light: #544b76;
$custom-dark: #000000;

JSON

{
  "hex": "#0a0b41",
  "rgb": {
    "r": 10,
    "g": 11,
    "b": 65
  },
  "hsl": {
    "h": 238.909,
    "s": 73.333,
    "l": 14.706
  },
  "oklch": {
    "l": 0.199,
    "c": 0.09836,
    "h": 272.2
  },
  "luminance": 0.00686
}

Semantic roles & 50–950 ramp

primary

#0A0B41

secondary

#7E7D29

accent

#ED38F0

background

#F5F4F7

surface

#E9E7ED

border

#C5C3C8

text

#030108

muted

#78777B

Preview Lab

Preview with #0A0B41

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

Preview Lab → · Contrast checker → · Palette generator →