#0A123D#0A123D

#0A123D is a very dark, moderate blue. Relative luminance 0.008; OKLCH L 20.8% C 0.083 H 269.6°. Best body text is #FFFFFF at 18.00:1 contrast (WCAG AA passes).

Color values

HEX	#0A123D
RGB	rgb(10, 18, 61)
HSL	hsl(231, 72%, 14%)
HSV	hsv(231, 84%, 24%)
CMYK	cmyk(83.6%, 70.5%, 0%, 76.1%)
CIE-LAB	lab(7.53, 14.46, -28.64)
CIE-LCH	lch(7.53, 32.08, 296.78°)
OKLab	oklab(20.85% -0.0006 -0.0828)
OKLCH	oklch(20.85% 0.083 269.6)
XYZ	xyz(1.1835, 0.8339, 4.5126)
Luminance	0.0083 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Midnight Blue (survey)

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#0A123D #3D350A

analogous

#0A2C3D #0A123D #1C0A3D

triadic

#0A123D #3D0A12 #123D0A

tetradic

#0A123D #3D0A2C #3D350A #0A3D1C

square

#0A123D #3D0A2C #3D350A #0A3D1C

split-complementary

#0A123D #3D1C0A #2C3D0A

monochromatic

#04081A #04081A #0A123D #132272 #1B31A6

Accessibility & contrast

On white

18.00

#0A123D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.17

#0A123D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #0A123D

18.00:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##0A123D	#FFFFFF	#000000	##FFFFFF
##0A123D	1.00	18.00	1.17	18.00
#FFFFFF	18.00	1.00	21.00	1.00
#000000	1.17	21.00	1.00	21.00
##FFFFFF	18.00	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00193E

Deuteranopia (green-blind)

#00143C

Tritanopia (blue-blind)

#001D25

Achromatopsia (no color)

#171717

Design tokens & code

CSS

--color: #0a123d;
/* rgb */ color: rgb(10, 18, 61);
/* oklch */ color: oklch(20.8% 0.083 269.6);

Tailwind

colors: {
  custom: {
    50: '#524f73',
    500: '#0a123d',
    950: '#000000',
  },
}

SCSS

$custom: #0a123d;
$custom-light: #524f73;
$custom-dark: #000000;

JSON

{
  "hex": "#0a123d",
  "rgb": {
    "r": 10,
    "g": 18,
    "b": 61
  },
  "hsl": {
    "h": 230.588,
    "s": 71.831,
    "l": 13.922
  },
  "oklch": {
    "l": 0.20845,
    "c": 0.08276,
    "h": 269.6
  },
  "luminance": 0.00834
}

Semantic roles & 50–950 ramp

primary

#0A123D

secondary

#7A6D28

accent

#D239EF

background

#F4F4F7

surface

#E7E7ED

border

#C3C3C8

text

#030208

muted

#78787B

Preview Lab

Preview with #0A123D

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

Preview Lab → · Contrast checker → · Palette generator →