#0C255F#0C255F

#0C255F is a dark, moderate blue. Relative luminance 0.022; OKLCH L 28.7% C 0.108 H 263.5°. Best body text is #FFFFFF at 14.53:1 contrast (WCAG AA passes).

Color values

HEX	#0C255F
RGB	rgb(12, 37, 95)
HSL	hsl(222, 78%, 21%)
HSV	hsv(222, 87%, 37%)
CMYK	cmyk(87.4%, 61.1%, 0%, 62.7%)
CIE-LAB	lab(16.64, 15.17, -37.17)
CIE-LCH	lch(16.64, 40.14, 292.20°)
OKLab	oklab(28.68% -0.0123 -0.1074)
OKLCH	oklch(28.68% 0.108 263.5)
XYZ	xyz(2.8780, 2.2272, 11.1025)
Luminance	0.0223 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#0C255F #5F460C

analogous

#0C4E5F #0C255F #1C0C5F

triadic

#0C255F #5F0C25 #255F0C

tetradic

#0C255F #5F0C4E #5F460C #0C5F1C

square

#0C255F #5F0C4E #5F460C #0C5F1C

split-complementary

#0C255F #5F1C0C #4E5F0C

monochromatic

#030B1B #051029 #0C255F #133A95 #1A4FCC

Accessibility & contrast

On white

14.53

#0C255F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.45

#0C255F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #0C255F

14.53:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##0C255F	#FFFFFF	#000000	##FFFFFF
##0C255F	1.00	14.53	1.45	14.53
#FFFFFF	14.53	1.00	21.00	1.00
#000000	1.45	21.00	1.00	21.00
##FFFFFF	14.53	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#002D61

Deuteranopia (green-blind)

#00255E

Tritanopia (blue-blind)

#00343E

Achromatopsia (no color)

#292929

Design tokens & code

CSS

--color: #0c255f;
/* rgb */ color: rgb(12, 37, 95);
/* oklch */ color: oklch(28.7% 0.108 263.5);

Tailwind

colors: {
  custom: {
    50: '#5c5f8d',
    500: '#0c255f',
    950: '#000000',
  },
}

SCSS

$custom: #0c255f;
$custom-light: #5c5f8d;
$custom-dark: #000000;

JSON

{
  "hex": "#0c255f",
  "rgb": {
    "r": 12,
    "g": 37,
    "b": 95
  },
  "hsl": {
    "h": 221.928,
    "s": 77.57,
    "l": 20.98
  },
  "oklch": {
    "l": 0.28681,
    "c": 0.10808,
    "h": 263.5
  },
  "luminance": 0.02228
}

Semantic roles & 50–950 ramp

primary

#0C255F

secondary

#99792D

accent

#BA34F4

background

#F5F5F8

surface

#E9E9F0

border

#C5C5CB

text

#05040C

muted

#79797D

Preview Lab

Preview with #0C255F

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

Preview Lab → · Contrast checker → · Palette generator →