#0A0B45#0A0B45

#0A0B45 is a very dark, moderate blue. Relative luminance 0.007; OKLCH L 20.4% C 0.104 H 271.7°. Best body text is #FFFFFF at 18.31:1 contrast (WCAG AA passes).

Color values

HEX	#0A0B45
RGB	rgb(10, 11, 69)
HSL	hsl(239, 75%, 15%)
HSV	hsv(239, 86%, 27%)
CMYK	cmyk(85.5%, 84.1%, 0%, 72.9%)
CIE-LAB	lab(6.62, 22.62, -35.81)
CIE-LCH	lch(6.62, 42.36, 302.28°)
OKLab	oklab(20.41% 0.003 -0.1041)
OKLCH	oklch(20.41% 0.104 271.7)
XYZ	xyz(1.3187, 0.7334, 5.7011)
Luminance	0.0073 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Midnight Blue (survey)

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#0A0B45 #45440A

analogous

#0A2845 #0A0B45 #260A45

triadic

#0A0B45 #450A0B #0B450A

tetradic

#0A0B45 #450A28 #45440A #0A4526

square

#0A0B45 #450A28 #45440A #0A4526

split-complementary

#0A0B45 #45260A #28450A

monochromatic

#04041B #04041B #0A0B45 #12147A #191CB0

Accessibility & contrast

On white

18.31

#0A0B45 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.15

#0A0B45 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #0A0B45

18.31:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##0A0B45	#FFFFFF	#000000	##FFFFFF
##0A0B45	1.00	18.31	1.15	18.31
#FFFFFF	18.31	1.00	21.00	1.00
#000000	1.15	21.00	1.00	21.00
##FFFFFF	18.31	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#001847

Deuteranopia (green-blind)

#001244

Tritanopia (blue-blind)

#001C27

Achromatopsia (no color)

#151515

Design tokens & code

CSS

--color: #0a0b45;
/* rgb */ color: rgb(10, 11, 69);
/* oklch */ color: oklch(20.4% 0.104 271.7);

Tailwind

colors: {
  custom: {
    50: '#564b79',
    500: '#0a0b45',
    950: '#000000',
  },
}

SCSS

$custom: #0a0b45;
$custom-light: #564b79;
$custom-dark: #000000;

JSON

{
  "hex": "#0a0b45",
  "rgb": {
    "r": 10,
    "g": 11,
    "b": 69
  },
  "hsl": {
    "h": 238.983,
    "s": 74.684,
    "l": 15.49
  },
  "oklch": {
    "l": 0.20406,
    "c": 0.10416,
    "h": 271.7
  },
  "luminance": 0.00734
}

Semantic roles & 50–950 ramp

primary

#0A0B45

secondary

#828129

accent

#EE36F1

background

#F5F4F7

surface

#E9E7ED

border

#C5C3C8

text

#030109

muted

#78777B

Preview Lab

Preview with #0A0B45

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

Preview Lab → · Contrast checker → · Palette generator →