#0A1645#0A1645

#0A1645 is a very dark, moderate blue. Relative luminance 0.011; OKLCH L 22.6% C 0.090 H 267.5°. Best body text is #FFFFFF at 17.30:1 contrast (WCAG AA passes).

Color values

HEX	#0A1645
RGB	rgb(10, 22, 69)
HSL	hsl(228, 75%, 15%)
HSV	hsv(228, 86%, 27%)
CMYK	cmyk(85.5%, 68.1%, 0%, 72.9%)
CIE-LAB	lab(9.54, 14.92, -31.02)
CIE-LCH	lch(9.54, 34.42, 295.68°)
OKLab	oklab(22.59% -0.0039 -0.0896)
OKLCH	oklch(22.59% 0.09 267.5)
XYZ	xyz(1.4859, 1.0679, 5.7569)
Luminance	0.0107 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Midnight Blue (survey)

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#0A1645 #45390A

analogous

#0A3345 #0A1645 #1B0A45

triadic

#0A1645 #450A16 #16450A

tetradic

#0A1645 #450A33 #45390A #0A451B

square

#0A1645 #450A33 #45390A #0A451B

split-complementary

#0A1645 #451B0A #33450A

monochromatic

#04091B #04091B #0A1645 #12277A #1938B0

Accessibility & contrast

On white

17.30

#0A1645 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.21

#0A1645 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #0A1645

17.30:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##0A1645	#FFFFFF	#000000	##FFFFFF
##0A1645	1.00	17.30	1.21	17.30
#FFFFFF	17.30	1.00	21.00	1.00
#000000	1.21	21.00	1.00	21.00
##FFFFFF	17.30	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#001D47

Deuteranopia (green-blind)

#001844

Tritanopia (blue-blind)

#00222A

Achromatopsia (no color)

#1B1B1B

Design tokens & code

CSS

--color: #0a1645;
/* rgb */ color: rgb(10, 22, 69);
/* oklch */ color: oklch(22.6% 0.090 267.5);

Tailwind

colors: {
  custom: {
    50: '#545279',
    500: '#0a1645',
    950: '#000000',
  },
}

SCSS

$custom: #0a1645;
$custom-light: #545279;
$custom-dark: #000000;

JSON

{
  "hex": "#0a1645",
  "rgb": {
    "r": 10,
    "g": 22,
    "b": 69
  },
  "hsl": {
    "h": 227.797,
    "s": 74.684,
    "l": 15.49
  },
  "oklch": {
    "l": 0.22591,
    "c": 0.08974,
    "h": 267.5
  },
  "luminance": 0.01068
}

Semantic roles & 50–950 ramp

primary

#0A1645

secondary

#827029

accent

#CB36F1

background

#F5F4F7

surface

#E9E7ED

border

#C5C3C8

text

#030209

muted

#78787B

Preview Lab

Preview with #0A1645

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

Preview Lab → · Contrast checker → · Palette generator →