#0C0C57#0C0C57

#0C0C57 is a very dark, vivid blue. Relative luminance 0.010; OKLCH L 23.0% C 0.127 H 270.5°. Best body text is #FFFFFF at 17.42:1 contrast (WCAG AA passes).

Color values

HEX	#0C0C57
RGB	rgb(12, 12, 87)
HSL	hsl(240, 76%, 19%)
HSV	hsv(240, 86%, 34%)
CMYK	cmyk(86.2%, 86.2%, 0%, 65.9%)
CIE-LAB	lab(9.23, 29.35, -43.97)
CIE-LCH	lch(9.23, 52.86, 303.72°)
OKLab	oklab(23.02% 0.0012 -0.1273)
OKLCH	oklch(23.02% 0.127 270.5)
XYZ	xyz(2.0028, 1.0290, 9.1080)
Luminance	0.0103 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#0C0C57 #57570C

analogous

#0C3257 #0C0C57 #320C57

triadic

#0C0C57 #570C0C #0C570C

tetradic

#0C0C57 #570C32 #57570C #0C5732

square

#0C0C57 #570C32 #57570C #0C5732

split-complementary

#0C0C57 #57320C #32570C

monochromatic

#04041B #050521 #0C0C57 #13138D #1B1BC3

Accessibility & contrast

On white

17.42

#0C0C57 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.21

#0C0C57 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #0C0C57

17.42:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##0C0C57	#FFFFFF	#000000	##FFFFFF
##0C0C57	1.00	17.42	1.21	17.42
#FFFFFF	17.42	1.00	21.00	1.00
#000000	1.21	21.00	1.00	21.00
##FFFFFF	17.42	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#001E59

Deuteranopia (green-blind)

#001656

Tritanopia (blue-blind)

#002332

Achromatopsia (no color)

#1A1A1A

Design tokens & code

CSS

--color: #0c0c57;
/* rgb */ color: rgb(12, 12, 87);
/* oklch */ color: oklch(23.0% 0.127 270.5);

Tailwind

colors: {
  custom: {
    50: '#5c4c87',
    500: '#0c0c57',
    950: '#000000',
  },
}

SCSS

$custom: #0c0c57;
$custom-light: #5c4c87;
$custom-dark: #000000;

JSON

{
  "hex": "#0c0c57",
  "rgb": {
    "r": 12,
    "g": 12,
    "b": 87
  },
  "hsl": {
    "h": 240,
    "s": 75.758,
    "l": 19.412
  },
  "oklch": {
    "l": 0.23021,
    "c": 0.12731,
    "h": 270.5
  },
  "luminance": 0.01029
}

Semantic roles & 50–950 ramp

primary

#0C0C57

secondary

#92922D

accent

#F235F2

background

#F5F4F8

surface

#E9E7F0

border

#C5C3CB

text

#05010B

muted

#79777C

Preview Lab

Preview with #0C0C57

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

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