#0C0537#0C0537

#0C0537 is a very dark, moderate blue. Relative luminance 0.005; OKLCH L 17.7% C 0.091 H 278.7°. Best body text is #FFFFFF at 19.22:1 contrast (WCAG AA passes).

Color values

HEX	#0C0537
RGB	rgb(12, 5, 55)
HSL	hsl(248, 83%, 12%)
HSV	hsv(248, 91%, 22%)
CMYK	cmyk(78.2%, 90.9%, 0%, 78.4%)
CIE-LAB	lab(4.18, 18.62, -29.73)
CIE-LCH	lch(4.18, 35.08, 302.06°)
OKLab	oklab(17.66% 0.0138 -0.0901)
OKLCH	oklch(17.66% 0.091 278.7)
XYZ	xyz(0.8953, 0.4625, 3.6558)
Luminance	0.0046 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Midnight Blue (survey)

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#0C0537 #303705

analogous

#051737 #0C0537 #250537

triadic

#0C0537 #370C05 #05370C

tetradic

#0C0537 #370517 #303705 #053725

square

#0C0537 #370517 #303705 #053725

split-complementary

#0C0537 #372505 #173705

monochromatic

#06031C #06031C #0C0537 #180A6F #240FA7

Accessibility & contrast

On white

19.22

#0C0537 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.09

#0C0537 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #0C0537

19.22:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##0C0537	#FFFFFF	#000000	##FFFFFF
##0C0537	1.00	19.22	1.09	19.22
#FFFFFF	19.22	1.00	21.00	1.00
#000000	1.09	21.00	1.00	21.00
##FFFFFF	19.22	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#001138

Deuteranopia (green-blind)

#000D36

Tritanopia (blue-blind)

#00141E

Achromatopsia (no color)

#0F0F0F

Design tokens & code

CSS

--color: #0c0537;
/* rgb */ color: rgb(12, 5, 55);
/* oklch */ color: oklch(17.7% 0.091 278.7);

Tailwind

colors: {
  custom: {
    50: '#51486e',
    500: '#0c0537',
    950: '#000000',
  },
}

SCSS

$custom: #0c0537;
$custom-light: #51486e;
$custom-dark: #000000;

JSON

{
  "hex": "#0c0537",
  "rgb": {
    "r": 12,
    "g": 5,
    "b": 55
  },
  "hsl": {
    "h": 248.4,
    "s": 83.333,
    "l": 11.765
  },
  "oklch": {
    "l": 0.17655,
    "c": 0.09115,
    "h": 278.7
  },
  "luminance": 0.00463
}

Semantic roles & 50–950 ramp

primary

#0C0537

secondary

#6C7820

accent

#FA2EDD

background

#F4F4F6

surface

#E7E6EC

border

#C3C2C7

text

#020007

muted

#78777A

Preview Lab

Preview with #0C0537

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

Preview Lab → · Contrast checker → · Palette generator →