#0C1F4E#0C1F4E

#0C1F4E is a dark, moderate blue. Relative luminance 0.016; OKLCH L 25.7% C 0.090 H 264.3°. Best body text is #FFFFFF at 15.89:1 contrast (WCAG AA passes).

Color values

HEX	#0C1F4E
RGB	rgb(12, 31, 78)
HSL	hsl(223, 73%, 18%)
HSV	hsv(223, 85%, 31%)
CMYK	cmyk(84.6%, 60.3%, 0%, 69.4%)
CIE-LAB	lab(13.28, 12.21, -31.18)
CIE-LCH	lch(13.28, 33.48, 291.39°)
OKLab	oklab(25.68% -0.009 -0.0899)
OKLCH	oklch(25.68% 0.09 264.3)
XYZ	xyz(2.0163, 1.6080, 7.4104)
Luminance	0.0161 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#0C1F4E #4E3B0C

analogous

#0C404E #0C1F4E #1A0C4E

triadic

#0C1F4E #4E0C1F #1F4E0C

tetradic

#0C1F4E #4E0C40 #4E3B0C #0C4E1A

square

#0C1F4E #4E0C40 #4E3B0C #0C4E1A

split-complementary

#0C1F4E #4E1A0C #404E0C

monochromatic

#040B1B #040B1B #0C1F4E #143483 #1C49B8

Accessibility & contrast

On white

15.89

#0C1F4E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.32

#0C1F4E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #0C1F4E

15.89:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##0C1F4E	#FFFFFF	#000000	##FFFFFF
##0C1F4E	1.00	15.89	1.32	15.89
#FFFFFF	15.89	1.00	21.00	1.00
#000000	1.32	21.00	1.00	21.00
##FFFFFF	15.89	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#002550

Deuteranopia (green-blind)

#001F4D

Tritanopia (blue-blind)

#002B33

Achromatopsia (no color)

#222222

Design tokens & code

CSS

--color: #0c1f4e;
/* rgb */ color: rgb(12, 31, 78);
/* oklch */ color: oklch(25.7% 0.090 264.3);

Tailwind

colors: {
  custom: {
    50: '#575a80',
    500: '#0c1f4e',
    950: '#000000',
  },
}

SCSS

$custom: #0c1f4e;
$custom-light: #575a80;
$custom-dark: #000000;

JSON

{
  "hex": "#0c1f4e",
  "rgb": {
    "r": 12,
    "g": 31,
    "b": 78
  },
  "hsl": {
    "h": 222.727,
    "s": 73.333,
    "l": 17.647
  },
  "oklch": {
    "l": 0.25678,
    "c": 0.09035,
    "h": 264.3
  },
  "luminance": 0.01608
}

Semantic roles & 50–950 ramp

primary

#0C1F4E

secondary

#8A6F2C

accent

#BB38F0

background

#F5F5F7

surface

#E9E9EE

border

#C5C5C9

text

#04030A

muted

#79787C

Preview Lab

Preview with #0C1F4E

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

Preview Lab → · Contrast checker → · Palette generator →