#0A123C#0A123C

#0A123C is a very dark, moderate blue. Relative luminance 0.008; OKLCH L 20.7% C 0.081 H 269.6°. Best body text is #FFFFFF at 18.03:1 contrast (WCAG AA passes).

Color values

HEX	#0A123C
RGB	rgb(10, 18, 60)
HSL	hsl(230, 71%, 14%)
HSV	hsv(230, 83%, 24%)
CMYK	cmyk(83.3%, 70%, 0%, 76.5%)
CIE-LAB	lab(7.44, 13.99, -28.08)
CIE-LCH	lch(7.44, 31.37, 296.49°)
OKLab	oklab(20.74% -0.0006 -0.0811)
OKLCH	oklch(20.74% 0.081 269.6)
XYZ	xyz(1.1568, 0.8233, 4.3720)
Luminance	0.0082 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Midnight Blue (survey)

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#0A123C #3C340A

analogous

#0A2B3C #0A123C #1B0A3C

triadic

#0A123C #3C0A12 #123C0A

tetradic

#0A123C #3C0A2B #3C340A #0A3C1B

square

#0A123C #3C0A2B #3C340A #0A3C1B

split-complementary

#0A123C #3C1B0A #2B3C0A

monochromatic

#04081A #04081A #0A123C #132270 #1B31A5

Accessibility & contrast

On white

18.03

#0A123C on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.16

#0A123C on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #0A123C

18.03:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##0A123C	#FFFFFF	#000000	##FFFFFF
##0A123C	1.00	18.03	1.16	18.03
#FFFFFF	18.03	1.00	21.00	1.00
#000000	1.16	21.00	1.00	21.00
##FFFFFF	18.03	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00193D

Deuteranopia (green-blind)

#00143B

Tritanopia (blue-blind)

#001D24

Achromatopsia (no color)

#161616

Design tokens & code

CSS

--color: #0a123c;
/* rgb */ color: rgb(10, 18, 60);
/* oklch */ color: oklch(20.7% 0.081 269.6);

Tailwind

colors: {
  custom: {
    50: '#524f72',
    500: '#0a123c',
    950: '#000000',
  },
}

SCSS

$custom: #0a123c;
$custom-light: #524f72;
$custom-dark: #000000;

JSON

{
  "hex": "#0a123c",
  "rgb": {
    "r": 10,
    "g": 18,
    "b": 60
  },
  "hsl": {
    "h": 230.4,
    "s": 71.429,
    "l": 13.725
  },
  "oklch": {
    "l": 0.20739,
    "c": 0.08114,
    "h": 269.6
  },
  "luminance": 0.00823
}

Semantic roles & 50–950 ramp

primary

#0A123C

secondary

#796C28

accent

#D13AEE

background

#F4F4F6

surface

#E7E7EC

border

#C3C3C7

text

#030208

muted

#78787B

Preview Lab

Preview with #0A123C

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

Preview Lab → · Contrast checker → · Palette generator →