#0C1F4B#0C1F4B

#0C1F4B is a dark, moderate blue. Relative luminance 0.016; OKLCH L 25.4% C 0.086 H 263.8°. Best body text is #FFFFFF at 15.99:1 contrast (WCAG AA passes).

Color values

HEX	#0C1F4B
RGB	rgb(12, 31, 75)
HSL	hsl(222, 72%, 17%)
HSV	hsv(222, 84%, 29%)
CMYK	cmyk(84%, 58.7%, 0%, 70.6%)
CIE-LAB	lab(13.02, 10.87, -29.53)
CIE-LCH	lch(13.02, 31.47, 290.21°)
OKLab	oklab(25.4% -0.0093 -0.0851)
OKLCH	oklch(25.4% 0.086 263.8)
XYZ	xyz(1.9112, 1.5659, 6.8568)
Luminance	0.0157 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#0C1F4B #4B380C

analogous

#0C3F4B #0C1F4B #190C4B

triadic

#0C1F4B #4B0C1F #1F4B0C

tetradic

#0C1F4B #4B0C3F #4B380C #0C4B19

square

#0C1F4B #4B0C3F #4B380C #0C4B19

split-complementary

#0C1F4B #4B190C #3F4B0C

monochromatic

#040B1A #040B1A #0C1F4B #143580 #1D4BB5

Accessibility & contrast

On white

15.99

#0C1F4B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.31

#0C1F4B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #0C1F4B

15.99:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##0C1F4B	#FFFFFF	#000000	##FFFFFF
##0C1F4B	1.00	15.99	1.31	15.99
#FFFFFF	15.99	1.00	21.00	1.00
#000000	1.31	21.00	1.00	21.00
##FFFFFF	15.99	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#02254D

Deuteranopia (green-blind)

#001F4A

Tritanopia (blue-blind)

#002A31

Achromatopsia (no color)

#222222

Design tokens & code

CSS

--color: #0c1f4b;
/* rgb */ color: rgb(12, 31, 75);
/* oklch */ color: oklch(25.4% 0.086 263.8);

Tailwind

colors: {
  custom: {
    50: '#565a7e',
    500: '#0c1f4b',
    950: '#000000',
  },
}

SCSS

$custom: #0c1f4b;
$custom-light: #565a7e;
$custom-dark: #000000;

JSON

{
  "hex": "#0c1f4b",
  "rgb": {
    "r": 12,
    "g": 31,
    "b": 75
  },
  "hsl": {
    "h": 221.905,
    "s": 72.414,
    "l": 17.059
  },
  "oklch": {
    "l": 0.25402,
    "c": 0.08557,
    "h": 263.8
  },
  "luminance": 0.01566
}

Semantic roles & 50–950 ramp

primary

#0C1F4B

secondary

#876B2C

accent

#B839EF

background

#F5F5F7

surface

#E9E9EE

border

#C5C5C9

text

#03030A

muted

#78787C

Preview Lab

Preview with #0C1F4B

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

Preview Lab → · Contrast checker → · Palette generator →