#0A0F3F#0A0F3F

#0A0F3F is a very dark, moderate blue. Relative luminance 0.008; OKLCH L 20.4% C 0.090 H 271.0°. Best body text is #FFFFFF at 18.21:1 contrast (WCAG AA passes).

Color values

HEX	#0A0F3F
RGB	rgb(10, 15, 63)
HSL	hsl(234, 73%, 14%)
HSV	hsv(234, 84%, 25%)
CMYK	cmyk(84.1%, 76.2%, 0%, 75.3%)
CIE-LAB	lab(6.91, 17.45, -31.09)
CIE-LCH	lch(6.91, 35.65, 299.31°)
OKLab	oklab(20.42% 0.0016 -0.0902)
OKLCH	oklch(20.42% 0.09 271)
XYZ	xyz(1.1929, 0.7649, 4.7864)
Luminance	0.0076 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Navy Blue (survey)

#001146

ΔE00 2.10

Midnight Blue (survey)

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#0A0F3F #3F3A0A

analogous

#0A2A3F #0A0F3F #200A3F

triadic

#0A0F3F #3F0A0F #0F3F0A

tetradic

#0A0F3F #3F0A2A #3F3A0A #0A3F20

square

#0A0F3F #3F0A2A #3F3A0A #0A3F20

split-complementary

#0A0F3F #3F200A #2A3F0A

monochromatic

#04061A #04061A #0A0F3F #121C74 #1B28A9

Accessibility & contrast

On white

18.21

#0A0F3F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.15

#0A0F3F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #0A0F3F

18.21:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##0A0F3F	#FFFFFF	#000000	##FFFFFF
##0A0F3F	1.00	18.21	1.15	18.21
#FFFFFF	18.21	1.00	21.00	1.00
#000000	1.15	21.00	1.00	21.00
##FFFFFF	18.21	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#001840

Deuteranopia (green-blind)

#00133E

Tritanopia (blue-blind)

#001C25

Achromatopsia (no color)

#151515

Design tokens & code

CSS

--color: #0a0f3f;
/* rgb */ color: rgb(10, 15, 63);
/* oklch */ color: oklch(20.4% 0.090 271.0);

Tailwind

colors: {
  custom: {
    50: '#534d75',
    500: '#0a0f3f',
    950: '#000000',
  },
}

SCSS

$custom: #0a0f3f;
$custom-light: #534d75;
$custom-dark: #000000;

JSON

{
  "hex": "#0a0f3f",
  "rgb": {
    "r": 10,
    "g": 15,
    "b": 63
  },
  "hsl": {
    "h": 234.34,
    "s": 72.603,
    "l": 14.314
  },
  "oklch": {
    "l": 0.2042,
    "c": 0.09019,
    "h": 271
  },
  "luminance": 0.00765
}

Semantic roles & 50–950 ramp

primary

#0A0F3F

secondary

#7C7429

accent

#DE38EF

background

#F5F4F7

surface

#E9E7ED

border

#C5C3C8

text

#030108

muted

#78777B

Preview Lab

Preview with #0A0F3F

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

Preview Lab → · Contrast checker → · Palette generator →