#0C0F51#0C0F51

#0C0F51 is a very dark, moderate blue. Relative luminance 0.010; OKLCH L 22.7% C 0.116 H 270.7°. Best body text is #FFFFFF at 17.46:1 contrast (WCAG AA passes).

Color values

HEX	#0C0F51
RGB	rgb(12, 15, 81)
HSL	hsl(237, 74%, 18%)
HSV	hsv(237, 85%, 32%)
CMYK	cmyk(85.2%, 81.5%, 0%, 68.2%)
CIE-LAB	lab(9.11, 25.24, -40.07)
CIE-LCH	lch(9.11, 47.36, 302.20°)
OKLab	oklab(22.71% 0.0014 -0.116)
OKLCH	oklch(22.71% 0.116 270.7)
XYZ	xyz(1.8071, 1.0137, 7.8834)
Luminance	0.0101 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#0C0F51 #514E0C

analogous

#0C3151 #0C0F51 #2B0C51

triadic

#0C0F51 #510C0F #0F510C

tetradic

#0C0F51 #510C31 #514E0C #0C512B

square

#0C0F51 #510C31 #514E0C #0C512B

split-complementary

#0C0F51 #512B0C #31510C

monochromatic

#04051B #04051C #0C0F51 #141986 #1C23BC

Accessibility & contrast

On white

17.46

#0C0F51 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.20

#0C0F51 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #0C0F51

17.46:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##0C0F51	#FFFFFF	#000000	##FFFFFF
##0C0F51	1.00	17.46	1.20	17.46
#FFFFFF	17.46	1.00	21.00	1.00
#000000	1.20	21.00	1.00	21.00
##FFFFFF	17.46	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#001D53

Deuteranopia (green-blind)

#001650

Tritanopia (blue-blind)

#00222F

Achromatopsia (no color)

#1A1A1A

Design tokens & code

CSS

--color: #0c0f51;
/* rgb */ color: rgb(12, 15, 81);
/* oklch */ color: oklch(22.7% 0.116 270.7);

Tailwind

colors: {
  custom: {
    50: '#5a4e83',
    500: '#0c0f51',
    950: '#000000',
  },
}

SCSS

$custom: #0c0f51;
$custom-light: #5a4e83;
$custom-dark: #000000;

JSON

{
  "hex": "#0c0f51",
  "rgb": {
    "r": 12,
    "g": 15,
    "b": 81
  },
  "hsl": {
    "h": 237.391,
    "s": 74.194,
    "l": 18.235
  },
  "oklch": {
    "l": 0.22707,
    "c": 0.11606,
    "h": 270.7
  },
  "luminance": 0.01014
}

Semantic roles & 50–950 ramp

primary

#0C0F51

secondary

#8C882C

accent

#E937F1

background

#F5F4F8

surface

#E9E7EF

border

#C5C3CA

text

#04010B

muted

#79777C

Preview Lab

Preview with #0C0F51

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

Preview Lab → · Contrast checker → · Palette generator →