#0D3B4E#0D3B4E

#0D3B4E is a dark, muted cyan. Relative luminance 0.038; OKLCH L 33.2% C 0.058 H 230.3°. Best body text is #FFFFFF at 11.98:1 contrast (WCAG AA passes).

Color values

HEX	#0D3B4E
RGB	rgb(13, 59, 78)
HSL	hsl(198, 71%, 18%)
HSV	hsv(198, 83%, 31%)
CMYK	cmyk(83.3%, 24.4%, 0%, 69.4%)
CIE-LAB	lab(22.87, -7.73, -15.93)
CIE-LCH	lch(22.87, 17.71, 244.13°)
OKLab	oklab(33.18% -0.0372 -0.0448)
OKLCH	oklch(33.18% 0.058 230.3)
XYZ	xyz(3.1045, 3.7632, 7.7690)
Luminance	0.0376 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#0D3B4E #4E200D

analogous

#0D4E40 #0D3B4E #0D1B4E

triadic

#0D3B4E #4E0D3B #3B4E0D

tetradic

#0D3B4E #400D4E #4E200D #1B4E0D

square

#0D3B4E #400D4E #4E200D #1B4E0D

split-complementary

#0D3B4E #4E0D1B #4E400D

monochromatic

#04141A #04141A #0D3B4E #166382 #1E8AB7

Accessibility & contrast

On white

11.98

#0D3B4E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.75

#0D3B4E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #0D3B4E

11.98:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##0D3B4E	#FFFFFF	#000000	##FFFFFF
##0D3B4E	1.00	11.98	1.75	11.98
#FFFFFF	11.98	1.00	21.00	1.00
#000000	1.75	21.00	1.00	21.00
##FFFFFF	11.98	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#313A4F

Deuteranopia (green-blind)

#29344E

Tritanopia (blue-blind)

#004041

Achromatopsia (no color)

#373737

Design tokens & code

CSS

--color: #0d3b4e;
/* rgb */ color: rgb(13, 59, 78);
/* oklch */ color: oklch(33.2% 0.058 230.3);

Tailwind

colors: {
  custom: {
    50: '#57707f',
    500: '#0d3b4e',
    950: '#000000',
  },
}

SCSS

$custom: #0d3b4e;
$custom-light: #57707f;
$custom-dark: #000000;

JSON

{
  "hex": "#0d3b4e",
  "rgb": {
    "r": 13,
    "g": 59,
    "b": 78
  },
  "hsl": {
    "h": 197.538,
    "s": 71.429,
    "l": 17.843
  },
  "oklch": {
    "l": 0.33177,
    "c": 0.05823,
    "h": 230.3
  },
  "luminance": 0.03764
}

Semantic roles & 50–950 ramp

primary

#0D3B4E

secondary

#89482E

accent

#6E3AEE

background

#F5F6F7

surface

#E9ECEE

border

#C5C7C9

text

#04070A

muted

#797A7C

Preview Lab

Preview with #0D3B4E

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

Preview Lab → · Contrast checker → · Palette generator →