#0A1C4E#0A1C4E

#0A1C4E is a very dark, moderate blue. Relative luminance 0.014; OKLCH L 24.9% C 0.095 H 265.0°. Best body text is #FFFFFF at 16.29:1 contrast (WCAG AA passes).

Color values

HEX	#0A1C4E
RGB	rgb(10, 28, 78)
HSL	hsl(224, 77%, 17%)
HSV	hsv(224, 87%, 31%)
CMYK	cmyk(87.2%, 64.1%, 0%, 69.4%)
CIE-LAB	lab(12.25, 14.28, -32.85)
CIE-LCH	lch(12.25, 35.82, 293.49°)
OKLab	oklab(24.88% -0.0083 -0.0949)
OKLCH	oklch(24.88% 0.095 265)
XYZ	xyz(1.9151, 1.4449, 7.3842)
Luminance	0.0144 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Midnight Blue (survey)

#020035

ΔE00 6.55

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#0A1C4E #4E3C0A

analogous

#0A3E4E #0A1C4E #1A0A4E

triadic

#0A1C4E #4E0A1C #1C4E0A

tetradic

#0A1C4E #4E0A3E #4E3C0A #0A4E1A

square

#0A1C4E #4E0A3E #4E3C0A #0A4E1A

split-complementary

#0A1C4E #4E1A0A #3E4E0A

monochromatic

#030A1B #030A1B #0A1C4E #112F84 #1843BA

Accessibility & contrast

On white

16.29

#0A1C4E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.29

#0A1C4E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #0A1C4E

16.29:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##0A1C4E	#FFFFFF	#000000	##FFFFFF
##0A1C4E	1.00	16.29	1.29	16.29
#FFFFFF	16.29	1.00	21.00	1.00
#000000	1.29	21.00	1.00	21.00
##FFFFFF	16.29	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#002350

Deuteranopia (green-blind)

#001D4D

Tritanopia (blue-blind)

#002931

Achromatopsia (no color)

#202020

Design tokens & code

CSS

--color: #0a1c4e;
/* rgb */ color: rgb(10, 28, 78);
/* oklch */ color: oklch(24.9% 0.095 265.0);

Tailwind

colors: {
  custom: {
    50: '#575780',
    500: '#0a1c4e',
    950: '#000000',
  },
}

SCSS

$custom: #0a1c4e;
$custom-light: #575780;
$custom-dark: #000000;

JSON

{
  "hex": "#0a1c4e",
  "rgb": {
    "r": 10,
    "g": 28,
    "b": 78
  },
  "hsl": {
    "h": 224.118,
    "s": 77.273,
    "l": 17.255
  },
  "oklch": {
    "l": 0.24882,
    "c": 0.09527,
    "h": 265
  },
  "luminance": 0.01445
}

Semantic roles & 50–950 ramp

primary

#0A1C4E

secondary

#8B7129

accent

#C134F4

background

#F5F5F7

surface

#E9E9EE

border

#C5C5C9

text

#04030A

muted

#79787C

Preview Lab

Preview with #0A1C4E

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

Preview Lab → · Contrast checker → · Palette generator →