#0C123E#0C123E

#0C123E is a very dark, moderate blue. Relative luminance 0.009; OKLCH L 21.1% C 0.084 H 271.2°. Best body text is #FFFFFF at 17.92:1 contrast (WCAG AA passes).

Color values

HEX	#0C123E
RGB	rgb(12, 18, 62)
HSL	hsl(233, 68%, 15%)
HSV	hsv(233, 81%, 24%)
CMYK	cmyk(80.6%, 71%, 0%, 75.7%)
CIE-LAB	lab(7.75, 15.22, -28.99)
CIE-LCH	lch(7.75, 32.74, 297.71°)
OKLab	oklab(21.08% 0.0018 -0.0837)
OKLCH	oklch(21.08% 0.084 271.2)
XYZ	xyz(1.2371, 0.8585, 4.6570)
Luminance	0.0086 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Midnight Blue (survey)

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#0C123E #3E380C

analogous

#0C2B3E #0C123E #1F0C3E

triadic

#0C123E #3E0C12 #123E0C

tetradic

#0C123E #3E0C2B #3E380C #0C3E1F

square

#0C123E #3E0C2B #3E380C #0C3E1F

split-complementary

#0C123E #3E1F0C #2B3E0C

monochromatic

#05071A #05071A #0C123E #162171 #2030A5

Accessibility & contrast

On white

17.92

#0C123E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.17

#0C123E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #0C123E

17.92:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##0C123E	#FFFFFF	#000000	##FFFFFF
##0C123E	1.00	17.92	1.17	17.92
#FFFFFF	17.92	1.00	21.00	1.00
#000000	1.17	21.00	1.00	21.00
##FFFFFF	17.92	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00193F

Deuteranopia (green-blind)

#00153D

Tritanopia (blue-blind)

#001D25

Achromatopsia (no color)

#171717

Design tokens & code

CSS

--color: #0c123e;
/* rgb */ color: rgb(12, 18, 62);
/* oklch */ color: oklch(21.1% 0.084 271.2);

Tailwind

colors: {
  custom: {
    50: '#534f74',
    500: '#0c123e',
    950: '#000000',
  },
}

SCSS

$custom: #0c123e;
$custom-light: #534f74;
$custom-dark: #000000;

JSON

{
  "hex": "#0c123e",
  "rgb": {
    "r": 12,
    "g": 18,
    "b": 62
  },
  "hsl": {
    "h": 232.8,
    "s": 67.568,
    "l": 14.51
  },
  "oklch": {
    "l": 0.21079,
    "c": 0.08371,
    "h": 271.2
  },
  "luminance": 0.00859
}

Semantic roles & 50–950 ramp

primary

#0C123E

secondary

#7A712C

accent

#D63DEA

background

#F5F4F7

surface

#E9E7ED

border

#C5C3C8

text

#030208

muted

#78787B

Preview Lab

Preview with #0C123E

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

Preview Lab → · Contrast checker → · Palette generator →