#0C103B#0C103B

#0C103B is a very dark, moderate blue. Relative luminance 0.008; OKLCH L 20.3% C 0.082 H 272.6°. Best body text is #FFFFFF at 18.21:1 contrast (WCAG AA passes).

Color values

HEX	#0C103B
RGB	rgb(12, 16, 59)
HSL	hsl(235, 66%, 14%)
HSV	hsv(235, 80%, 23%)
CMYK	cmyk(79.7%, 72.9%, 0%, 76.9%)
CIE-LAB	lab(6.90, 15.26, -28.22)
CIE-LCH	lch(6.90, 32.08, 298.40°)
OKLab	oklab(20.32% 0.0037 -0.0817)
OKLCH	oklch(20.32% 0.082 272.6)
XYZ	xyz(1.1261, 0.7644, 4.2250)
Luminance	0.0076 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Dark Navy

#000435

ΔE00 2.68

Midnight Blue (survey)

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#0C103B #3B370C

analogous

#0C283B #0C103B #200C3B

triadic

#0C103B #3B0C10 #103B0C

tetradic

#0C103B #3B0C28 #3B370C #0C3B20

square

#0C103B #3B0C28 #3B370C #0C3B20

split-complementary

#0C103B #3B200C #283B0C

monochromatic

#050719 #050719 #0C103B #161E6E #212CA1

Accessibility & contrast

On white

18.21

#0C103B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.15

#0C103B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #0C103B

18.21:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##0C103B	#FFFFFF	#000000	##FFFFFF
##0C103B	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)

#00173C

Deuteranopia (green-blind)

#00133A

Tritanopia (blue-blind)

#001B23

Achromatopsia (no color)

#151515

Design tokens & code

CSS

--color: #0c103b;
/* rgb */ color: rgb(12, 16, 59);
/* oklch */ color: oklch(20.3% 0.082 272.6);

Tailwind

colors: {
  custom: {
    50: '#534e71',
    500: '#0c103b',
    950: '#000000',
  },
}

SCSS

$custom: #0c103b;
$custom-light: #534e71;
$custom-dark: #000000;

JSON

{
  "hex": "#0c103b",
  "rgb": {
    "r": 12,
    "g": 16,
    "b": 59
  },
  "hsl": {
    "h": 234.894,
    "s": 66.197,
    "l": 13.922
  },
  "oklch": {
    "l": 0.20321,
    "c": 0.08181,
    "h": 272.6
  },
  "luminance": 0.00765
}

Semantic roles & 50–950 ramp

primary

#0C103B

secondary

#77712C

accent

#DB3FE9

background

#F4F4F6

surface

#E8E7EC

border

#C4C3C7

text

#030108

muted

#78777B

Preview Lab

Preview with #0C103B

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

Preview Lab → · Contrast checker → · Palette generator →