#0A103C#0A103C

#0A103C is a very dark, moderate blue. Relative luminance 0.008; OKLCH L 20.3% C 0.084 H 270.7°. Best body text is #FFFFFF at 18.23:1 contrast (WCAG AA passes).

Color values

HEX	#0A103C
RGB	rgb(10, 16, 60)
HSL	hsl(233, 71%, 14%)
HSV	hsv(233, 83%, 24%)
CMYK	cmyk(83.3%, 73.3%, 0%, 76.5%)
CIE-LAB	lab(6.88, 15.37, -28.99)
CIE-LCH	lch(6.88, 32.81, 297.93°)
OKLab	oklab(20.29% 0.0011 -0.084)
OKLCH	oklch(20.29% 0.084 270.7)
XYZ	xyz(1.1258, 0.7612, 4.3617)
Luminance	0.0076 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Midnight Blue (survey)

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#0A103C #3C360A

analogous

#0A293C #0A103C #1D0A3C

triadic

#0A103C #3C0A10 #103C0A

tetradic

#0A103C #3C0A29 #3C360A #0A3C1D

square

#0A103C #3C0A29 #3C360A #0A3C1D

split-complementary

#0A103C #3C1D0A #293C0A

monochromatic

#04071A #04071A #0A103C #131E70 #1B2CA5

Accessibility & contrast

On white

18.23

#0A103C on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.15

#0A103C on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #0A103C

18.23:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##0A103C	#FFFFFF	#000000	##FFFFFF
##0A103C	1.00	18.23	1.15	18.23
#FFFFFF	18.23	1.00	21.00	1.00
#000000	1.15	21.00	1.00	21.00
##FFFFFF	18.23	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00183D

Deuteranopia (green-blind)

#00133B

Tritanopia (blue-blind)

#001B24

Achromatopsia (no color)

#151515

Design tokens & code

CSS

--color: #0a103c;
/* rgb */ color: rgb(10, 16, 60);
/* oklch */ color: oklch(20.3% 0.084 270.7);

Tailwind

colors: {
  custom: {
    50: '#524e72',
    500: '#0a103c',
    950: '#000000',
  },
}

SCSS

$custom: #0a103c;
$custom-light: #524e72;
$custom-dark: #000000;

JSON

{
  "hex": "#0a103c",
  "rgb": {
    "r": 10,
    "g": 16,
    "b": 60
  },
  "hsl": {
    "h": 232.8,
    "s": 71.429,
    "l": 13.725
  },
  "oklch": {
    "l": 0.20293,
    "c": 0.08406,
    "h": 270.7
  },
  "luminance": 0.00761
}

Semantic roles & 50–950 ramp

primary

#0A103C

secondary

#797028

accent

#D93AEE

background

#F4F4F6

surface

#E7E7EC

border

#C3C3C7

text

#030108

muted

#78777B

Preview Lab

Preview with #0A103C

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

Preview Lab → · Contrast checker → · Palette generator →