#0A1544#0A1544

#0A1544 is a very dark, moderate blue. Relative luminance 0.010; OKLCH L 22.3% C 0.090 H 268.0°. Best body text is #FFFFFF at 17.45:1 contrast (WCAG AA passes).

Color values

HEX	#0A1544
RGB	rgb(10, 21, 68)
HSL	hsl(229, 74%, 15%)
HSV	hsv(229, 85%, 27%)
CMYK	cmyk(85.3%, 69.1%, 0%, 73.3%)
CIE-LAB	lab(9.14, 15.25, -30.98)
CIE-LCH	lch(9.14, 34.53, 296.21°)
OKLab	oklab(22.26% -0.0032 -0.0895)
OKLCH	oklch(22.26% 0.09 268)
XYZ	xyz(1.4364, 1.0181, 5.5885)
Luminance	0.0102 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Midnight Blue (survey)

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#0A1544 #44390A

analogous

#0A3244 #0A1544 #1C0A44

triadic

#0A1544 #440A15 #15440A

tetradic

#0A1544 #440A32 #44390A #0A441C

square

#0A1544 #440A32 #44390A #0A441C

split-complementary

#0A1544 #441C0A #32440A

monochromatic

#04081B #04081B #0A1544 #122579 #1A36AF

Accessibility & contrast

On white

17.45

#0A1544 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.20

#0A1544 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #0A1544

17.45:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##0A1544	#FFFFFF	#000000	##FFFFFF
##0A1544	1.00	17.45	1.20	17.45
#FFFFFF	17.45	1.00	21.00	1.00
#000000	1.20	21.00	1.00	21.00
##FFFFFF	17.45	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#001D46

Deuteranopia (green-blind)

#001743

Tritanopia (blue-blind)

#00212A

Achromatopsia (no color)

#1A1A1A

Design tokens & code

CSS

--color: #0a1544;
/* rgb */ color: rgb(10, 21, 68);
/* oklch */ color: oklch(22.3% 0.090 268.0);

Tailwind

colors: {
  custom: {
    50: '#545278',
    500: '#0a1544',
    950: '#000000',
  },
}

SCSS

$custom: #0a1544;
$custom-light: #545278;
$custom-dark: #000000;

JSON

{
  "hex": "#0a1544",
  "rgb": {
    "r": 10,
    "g": 21,
    "b": 68
  },
  "hsl": {
    "h": 228.621,
    "s": 74.359,
    "l": 15.294
  },
  "oklch": {
    "l": 0.22261,
    "c": 0.0896,
    "h": 268
  },
  "luminance": 0.01018
}

Semantic roles & 50–950 ramp

primary

#0A1544

secondary

#817029

accent

#CE37F1

background

#F5F4F7

surface

#E9E7ED

border

#C5C3C8

text

#030209

muted

#78787B

Preview Lab

Preview with #0A1544

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

Preview Lab → · Contrast checker → · Palette generator →