#0A133E#0A133E

#0A133E is a very dark, moderate blue. Relative luminance 0.009; OKLCH L 21.2% C 0.083 H 269.0°. Best body text is #FFFFFF at 17.86:1 contrast (WCAG AA passes).

Color values

HEX	#0A133E
RGB	rgb(10, 19, 62)
HSL	hsl(230, 72%, 14%)
HSV	hsv(230, 84%, 24%)
CMYK	cmyk(83.9%, 69.4%, 0%, 75.7%)
CIE-LAB	lab(7.93, 14.15, -28.71)
CIE-LCH	lch(7.93, 32.01, 296.24°)
OKLab	oklab(21.18% -0.0015 -0.0829)
OKLCH	oklch(21.18% 0.083 269)
XYZ	xyz(1.2272, 0.8779, 4.6613)
Luminance	0.0088 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Midnight Blue (survey)

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#0A133E #3E350A

analogous

#0A2D3E #0A133E #1B0A3E

triadic

#0A133E #3E0A13 #133E0A

tetradic

#0A133E #3E0A2D #3E350A #0A3E1B

square

#0A133E #3E0A2D #3E350A #0A3E1B

split-complementary

#0A133E #3E1B0A #2D3E0A

monochromatic

#04081A #04081A #0A133E #132373 #1B33A7

Accessibility & contrast

On white

17.86

#0A133E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.18

#0A133E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #0A133E

17.86:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##0A133E	#FFFFFF	#000000	##FFFFFF
##0A133E	1.00	17.86	1.18	17.86
#FFFFFF	17.86	1.00	21.00	1.00
#000000	1.18	21.00	1.00	21.00
##FFFFFF	17.86	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#001A3F

Deuteranopia (green-blind)

#00153D

Tritanopia (blue-blind)

#001E26

Achromatopsia (no color)

#171717

Design tokens & code

CSS

--color: #0a133e;
/* rgb */ color: rgb(10, 19, 62);
/* oklch */ color: oklch(21.2% 0.083 269.0);

Tailwind

colors: {
  custom: {
    50: '#525074',
    500: '#0a133e',
    950: '#000000',
  },
}

SCSS

$custom: #0a133e;
$custom-light: #525074;
$custom-dark: #000000;

JSON

{
  "hex": "#0a133e",
  "rgb": {
    "r": 10,
    "g": 19,
    "b": 62
  },
  "hsl": {
    "h": 229.615,
    "s": 72.222,
    "l": 14.118
  },
  "oklch": {
    "l": 0.21177,
    "c": 0.0829,
    "h": 269
  },
  "luminance": 0.00878
}

Semantic roles & 50–950 ramp

primary

#0A133E

secondary

#7B6D28

accent

#CF39EF

background

#F4F4F7

surface

#E8E7ED

border

#C4C3C8

text

#030208

muted

#78787B

Preview Lab

Preview with #0A133E

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

Preview Lab → · Contrast checker → · Palette generator →