#0C123D#0C123D

#0C123D is a very dark, moderate blue. Relative luminance 0.008; OKLCH L 21.0% C 0.082 H 271.3°. Best body text is #FFFFFF at 17.95:1 contrast (WCAG AA passes).

Color values

HEX	#0C123D
RGB	rgb(12, 18, 61)
HSL	hsl(233, 67%, 14%)
HSV	hsv(233, 80%, 24%)
CMYK	cmyk(80.3%, 70.5%, 0%, 76.1%)
CIE-LAB	lab(7.66, 14.78, -28.43)
CIE-LCH	lch(7.66, 32.04, 297.46°)
OKLab	oklab(20.97% 0.0018 -0.0821)
OKLCH	oklch(20.97% 0.082 271.3)
XYZ	xyz(1.2099, 0.8476, 4.5138)
Luminance	0.0085 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Midnight Blue (survey)

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#0C123D #3D370C

analogous

#0C2B3D #0C123D #1F0C3D

triadic

#0C123D #3D0C12 #123D0C

tetradic

#0C123D #3D0C2B #3D370C #0C3D1F

square

#0C123D #3D0C2B #3D370C #0C3D1F

split-complementary

#0C123D #3D1F0C #2B3D0C

monochromatic

#05081A #05081A #0C123D #162170 #2030A3

Accessibility & contrast

On white

17.95

#0C123D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.17

#0C123D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #0C123D

17.95:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##0C123D	#FFFFFF	#000000	##FFFFFF
##0C123D	1.00	17.95	1.17	17.95
#FFFFFF	17.95	1.00	21.00	1.00
#000000	1.17	21.00	1.00	21.00
##FFFFFF	17.95	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00193E

Deuteranopia (green-blind)

#00153C

Tritanopia (blue-blind)

#001D25

Achromatopsia (no color)

#171717

Design tokens & code

CSS

--color: #0c123d;
/* rgb */ color: rgb(12, 18, 61);
/* oklch */ color: oklch(21.0% 0.082 271.3);

Tailwind

colors: {
  custom: {
    50: '#534f73',
    500: '#0c123d',
    950: '#000000',
  },
}

SCSS

$custom: #0c123d;
$custom-light: #534f73;
$custom-dark: #000000;

JSON

{
  "hex": "#0c123d",
  "rgb": {
    "r": 12,
    "g": 18,
    "b": 61
  },
  "hsl": {
    "h": 232.653,
    "s": 67.123,
    "l": 14.314
  },
  "oklch": {
    "l": 0.20973,
    "c": 0.0821,
    "h": 271.3
  },
  "luminance": 0.00848
}

Semantic roles & 50–950 ramp

primary

#0C123D

secondary

#79702C

accent

#D53EEA

background

#F5F4F7

surface

#E8E7ED

border

#C4C3C8

text

#030208

muted

#78787B

Preview Lab

Preview with #0C123D

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

Preview Lab → · Contrast checker → · Palette generator →