#0C1551#0C1551

#0C1551 is a very dark, moderate blue. Relative luminance 0.012; OKLCH L 23.8% C 0.109 H 269.1°. Best body text is #FFFFFF at 16.91:1 contrast (WCAG AA passes).

Color values

HEX	#0C1551
RGB	rgb(12, 21, 81)
HSL	hsl(232, 74%, 18%)
HSV	hsv(232, 85%, 32%)
CMYK	cmyk(85.2%, 74.1%, 0%, 68.2%)
CIE-LAB	lab(10.62, 21.07, -37.58)
CIE-LCH	lch(10.62, 43.08, 299.28°)
OKLab	oklab(23.8% -0.0017 -0.1088)
OKLCH	oklch(23.8% 0.109 269.1)
XYZ	xyz(1.9045, 1.2084, 7.9158)
Luminance	0.0121 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Midnight Blue (survey)

#020035

ΔE00 5.63

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#0C1551 #51480C

analogous

#0C3751 #0C1551 #250C51

triadic

#0C1551 #510C15 #15510C

tetradic

#0C1551 #510C37 #51480C #0C5125

square

#0C1551 #510C37 #51480C #0C5125

split-complementary

#0C1551 #51250C #37510C

monochromatic

#04071B #04071C #0C1551 #142386 #1C31BC

Accessibility & contrast

On white

16.91

#0C1551 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.24

#0C1551 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #0C1551

16.91:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##0C1551	#FFFFFF	#000000	##FFFFFF
##0C1551	1.00	16.91	1.24	16.91
#FFFFFF	16.91	1.00	21.00	1.00
#000000	1.24	21.00	1.00	21.00
##FFFFFF	16.91	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#002053

Deuteranopia (green-blind)

#001950

Tritanopia (blue-blind)

#002531

Achromatopsia (no color)

#1D1D1D

Design tokens & code

CSS

--color: #0c1551;
/* rgb */ color: rgb(12, 21, 81);
/* oklch */ color: oklch(23.8% 0.109 269.1);

Tailwind

colors: {
  custom: {
    50: '#595283',
    500: '#0c1551',
    950: '#000000',
  },
}

SCSS

$custom: #0c1551;
$custom-light: #595283;
$custom-dark: #000000;

JSON

{
  "hex": "#0c1551",
  "rgb": {
    "r": 12,
    "g": 21,
    "b": 81
  },
  "hsl": {
    "h": 232.174,
    "s": 74.194,
    "l": 18.235
  },
  "oklch": {
    "l": 0.23795,
    "c": 0.10881,
    "h": 269.1
  },
  "luminance": 0.01209
}

Semantic roles & 50–950 ramp

primary

#0C1551

secondary

#8C802C

accent

#D937F1

background

#F5F4F8

surface

#E9E7EF

border

#C5C3CA

text

#04020A

muted

#79787C

Preview Lab

Preview with #0C1551

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

Preview Lab → · Contrast checker → · Palette generator →