#0C1051#0C1051

#0C1051 is a very dark, moderate blue. Relative luminance 0.010; OKLCH L 22.9% C 0.115 H 270.4°. Best body text is #FFFFFF at 17.38:1 contrast (WCAG AA passes).

Color values

HEX	#0C1051
RGB	rgb(12, 16, 81)
HSL	hsl(237, 74%, 18%)
HSV	hsv(237, 85%, 32%)
CMYK	cmyk(85.2%, 80.2%, 0%, 68.2%)
CIE-LAB	lab(9.34, 24.58, -39.68)
CIE-LCH	lch(9.34, 46.68, 301.77°)
OKLab	oklab(22.88% 0.0009 -0.1149)
OKLCH	oklch(22.88% 0.115 270.4)
XYZ	xyz(1.8216, 1.0426, 7.8882)
Luminance	0.0104 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#0C1051 #514D0C

analogous

#0C3251 #0C1051 #2A0C51

triadic

#0C1051 #510C10 #10510C

tetradic

#0C1051 #510C32 #514D0C #0C512A

square

#0C1051 #510C32 #514D0C #0C512A

split-complementary

#0C1051 #512A0C #32510C

monochromatic

#04051B #04051C #0C1051 #141B86 #1C25BC

Accessibility & contrast

On white

17.38

#0C1051 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.21

#0C1051 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #0C1051

17.38:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##0C1051	#FFFFFF	#000000	##FFFFFF
##0C1051	1.00	17.38	1.21	17.38
#FFFFFF	17.38	1.00	21.00	1.00
#000000	1.21	21.00	1.00	21.00
##FFFFFF	17.38	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#001E53

Deuteranopia (green-blind)

#001750

Tritanopia (blue-blind)

#00232F

Achromatopsia (no color)

#1A1A1A

Design tokens & code

CSS

--color: #0c1051;
/* rgb */ color: rgb(12, 16, 81);
/* oklch */ color: oklch(22.9% 0.115 270.4);

Tailwind

colors: {
  custom: {
    50: '#5a4e83',
    500: '#0c1051',
    950: '#000000',
  },
}

SCSS

$custom: #0c1051;
$custom-light: #5a4e83;
$custom-dark: #000000;

JSON

{
  "hex": "#0c1051",
  "rgb": {
    "r": 12,
    "g": 16,
    "b": 81
  },
  "hsl": {
    "h": 236.522,
    "s": 74.194,
    "l": 18.235
  },
  "oklch": {
    "l": 0.22875,
    "c": 0.11492,
    "h": 270.4
  },
  "luminance": 0.01043
}

Semantic roles & 50–950 ramp

primary

#0C1051

secondary

#8C872C

accent

#E637F1

background

#F5F4F8

surface

#E9E7EF

border

#C5C3CA

text

#04010B

muted

#79777C

Preview Lab

Preview with #0C1051

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

Preview Lab → · Contrast checker → · Palette generator →