#0A1545#0A1545

#0A1545 is a very dark, moderate blue. Relative luminance 0.010; OKLCH L 22.4% C 0.091 H 268.0°. Best body text is #FFFFFF at 17.41:1 contrast (WCAG AA passes).

Color values

HEX	#0A1545
RGB	rgb(10, 21, 69)
HSL	hsl(229, 75%, 15%)
HSV	hsv(229, 86%, 27%)
CMYK	cmyk(85.5%, 69.6%, 0%, 72.9%)
CIE-LAB	lab(9.24, 15.69, -31.52)
CIE-LCH	lch(9.24, 35.21, 296.47°)
OKLab	oklab(22.37% -0.0032 -0.0911)
OKLCH	oklch(22.37% 0.091 268)
XYZ	xyz(1.4671, 1.0304, 5.7506)
Luminance	0.0103 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Midnight Blue (survey)

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#0A1545 #453A0A

analogous

#0A3245 #0A1545 #1D0A45

triadic

#0A1545 #450A15 #15450A

tetradic

#0A1545 #450A32 #453A0A #0A451D

square

#0A1545 #450A32 #453A0A #0A451D

split-complementary

#0A1545 #451D0A #32450A

monochromatic

#04081B #04081B #0A1545 #12257A #1936B0

Accessibility & contrast

On white

17.41

#0A1545 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.21

#0A1545 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #0A1545

17.41:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##0A1545	#FFFFFF	#000000	##FFFFFF
##0A1545	1.00	17.41	1.21	17.41
#FFFFFF	17.41	1.00	21.00	1.00
#000000	1.21	21.00	1.00	21.00
##FFFFFF	17.41	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#001D47

Deuteranopia (green-blind)

#001744

Tritanopia (blue-blind)

#00212A

Achromatopsia (no color)

#1A1A1A

Design tokens & code

CSS

--color: #0a1545;
/* rgb */ color: rgb(10, 21, 69);
/* oklch */ color: oklch(22.4% 0.091 268.0);

Tailwind

colors: {
  custom: {
    50: '#545279',
    500: '#0a1545',
    950: '#000000',
  },
}

SCSS

$custom: #0a1545;
$custom-light: #545279;
$custom-dark: #000000;

JSON

{
  "hex": "#0a1545",
  "rgb": {
    "r": 10,
    "g": 21,
    "b": 69
  },
  "hsl": {
    "h": 228.814,
    "s": 74.684,
    "l": 15.49
  },
  "oklch": {
    "l": 0.22367,
    "c": 0.09117,
    "h": 268
  },
  "luminance": 0.01031
}

Semantic roles & 50–950 ramp

primary

#0A1545

secondary

#827129

accent

#CE36F1

background

#F5F4F7

surface

#E9E7ED

border

#C5C3C8

text

#030209

muted

#78787B

Preview Lab

Preview with #0A1545

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

Preview Lab → · Contrast checker → · Palette generator →