#0C3F51#0C3F51

#0C3F51 is a dark, muted cyan. Relative luminance 0.042; OKLCH L 34.4% C 0.060 H 226.8°. Best body text is #FFFFFF at 11.38:1 contrast (WCAG AA passes).

Color values

HEX	#0C3F51
RGB	rgb(12, 63, 81)
HSL	hsl(196, 74%, 18%)
HSV	hsv(196, 85%, 32%)
CMYK	cmyk(85.2%, 22.2%, 0%, 68.2%)
CIE-LAB	lab(24.41, -9.20, -15.54)
CIE-LCH	lch(24.41, 18.06, 239.36°)
OKLab	oklab(34.45% -0.0409 -0.0436)
OKLCH	oklch(34.45% 0.06 226.8)
XYZ	xyz(3.4137, 4.2268, 8.4189)
Luminance	0.0423 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#0C3F51 #511E0C

analogous

#0C5140 #0C3F51 #0C1C51

triadic

#0C3F51 #510C3F #3F510C

tetradic

#0C3F51 #400C51 #511E0C #1C510C

square

#0C3F51 #400C51 #511E0C #1C510C

split-complementary

#0C3F51 #510C1C #51400C

monochromatic

#04151B #04161C #0C3F51 #146886 #1C92BC

Accessibility & contrast

On white

11.38

#0C3F51 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.85

#0C3F51 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #0C3F51

11.38:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##0C3F51	#FFFFFF	#000000	##FFFFFF
##0C3F51	1.00	11.38	1.85	11.38
#FFFFFF	11.38	1.00	21.00	1.00
#000000	1.85	21.00	1.00	21.00
##FFFFFF	11.38	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#353E52

Deuteranopia (green-blind)

#2C3751

Tritanopia (blue-blind)

#004445

Achromatopsia (no color)

#3A3A3A

Design tokens & code

CSS

--color: #0c3f51;
/* rgb */ color: rgb(12, 63, 81);
/* oklch */ color: oklch(34.4% 0.060 226.8);

Tailwind

colors: {
  custom: {
    50: '#587482',
    500: '#0c3f51',
    950: '#000000',
  },
}

SCSS

$custom: #0c3f51;
$custom-light: #587482;
$custom-dark: #000000;

JSON

{
  "hex": "#0c3f51",
  "rgb": {
    "r": 12,
    "g": 63,
    "b": 81
  },
  "hsl": {
    "h": 195.652,
    "s": 74.194,
    "l": 18.235
  },
  "oklch": {
    "l": 0.34446,
    "c": 0.05982,
    "h": 226.8
  },
  "luminance": 0.04227
}

Semantic roles & 50–950 ramp

primary

#0C3F51

secondary

#8C452C

accent

#6737F1

background

#F5F7F7

surface

#E9EDEE

border

#C5C8C9

text

#04080A

muted

#797B7C

Preview Lab

Preview with #0C3F51

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

Preview Lab → · Contrast checker → · Palette generator →