#0C102F#0C102F

#0C102F is a very dark, moderate blue. Relative luminance 0.007; OKLCH L 19.1% C 0.062 H 273.5°. Best body text is #FFFFFF at 18.57:1 contrast (WCAG AA passes).

Color values

HEX	#0C102F
RGB	rgb(12, 16, 47)
HSL	hsl(233, 59%, 12%)
HSV	hsv(233, 74%, 18%)
CMYK	cmyk(74.5%, 66%, 0%, 81.6%)
CIE-LAB	lab(5.91, 9.35, -21.05)
CIE-LCH	lch(5.91, 23.04, 293.95°)
OKLab	oklab(19.1% 0.0038 -0.0615)
OKLCH	oklch(19.1% 0.062 273.5)
XYZ	xyz(0.8498, 0.6539, 2.7702)
Luminance	0.0065 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Midnight Blue (survey)

#020035

ΔE00 5.39

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#0C102F #2F2B0C

analogous

#0C222F #0C102F #1A0C2F

triadic

#0C102F #2F0C10 #102F0C

tetradic

#0C102F #2F0C22 #2F2B0C #0C2F1A

square

#0C102F #2F0C22 #2F2B0C #0C2F1A

split-complementary

#0C102F #2F1A0C #222F0C

monochromatic

#060818 #060818 #0C102F #182160 #253191

Accessibility & contrast

On white

18.57

#0C102F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.13

#0C102F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #0C102F

18.57:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##0C102F	#FFFFFF	#000000	##FFFFFF
##0C102F	1.00	18.57	1.13	18.57
#FFFFFF	18.57	1.00	21.00	1.00
#000000	1.13	21.00	1.00	21.00
##FFFFFF	18.57	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#011530

Deuteranopia (green-blind)

#00122E

Tritanopia (blue-blind)

#00171D

Achromatopsia (no color)

#131313

Design tokens & code

CSS

--color: #0c102f;
/* rgb */ color: rgb(12, 16, 47);
/* oklch */ color: oklch(19.1% 0.062 273.5);

Tailwind

colors: {
  custom: {
    50: '#4f4e68',
    500: '#0c102f',
    950: '#000000',
  },
}

SCSS

$custom: #0c102f;
$custom-light: #4f4e68;
$custom-dark: #000000;

JSON

{
  "hex": "#0c102f",
  "rgb": {
    "r": 12,
    "g": 16,
    "b": 47
  },
  "hsl": {
    "h": 233.143,
    "s": 59.322,
    "l": 11.569
  },
  "oklch": {
    "l": 0.19098,
    "c": 0.0616,
    "h": 273.5
  },
  "luminance": 0.00654
}

Semantic roles & 50–950 ramp

primary

#0C102F

secondary

#6B642C

accent

#D145E3

background

#F4F4F6

surface

#E7E7EB

border

#C3C3C6

text

#020106

muted

#78777A

Preview Lab

Preview with #0C102F

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

Preview Lab → · Contrast checker → · Palette generator →