#0D3F4D#0D3F4D

#0D3F4D is a dark, muted cyan. Relative luminance 0.042; OKLCH L 34.3% C 0.056 H 221.1°. Best body text is #FFFFFF at 11.44:1 contrast (WCAG AA passes).

Color values

HEX	#0D3F4D
RGB	rgb(13, 63, 77)
HSL	hsl(193, 71%, 18%)
HSV	hsv(193, 83%, 30%)
CMYK	cmyk(83.1%, 18.2%, 0%, 69.8%)
CIE-LAB	lab(24.25, -10.64, -13.15)
CIE-LCH	lch(24.25, 16.92, 231.01°)
OKLab	oklab(34.26% -0.0422 -0.0368)
OKLCH	oklch(34.26% 0.056 221.1)
XYZ	xyz(3.2825, 4.1760, 7.6528)
Luminance	0.0418 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#0D3F4D #4D1B0D

analogous

#0D4D3B #0D3F4D #0D1F4D

triadic

#0D3F4D #4D0D3F #3F4D0D

tetradic

#0D3F4D #3B0D4D #4D1B0D #1F4D0D

square

#0D3F4D #3B0D4D #4D1B0D #1F4D0D

split-complementary

#0D3F4D #4D0D1F #4D3B0D

monochromatic

#04151A #04151A #0D3F4D #166A81 #1F95B6

Accessibility & contrast

On white

11.44

#0D3F4D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.84

#0D3F4D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #0D3F4D

11.44:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##0D3F4D	#FFFFFF	#000000	##FFFFFF
##0D3F4D	1.00	11.44	1.84	11.44
#FFFFFF	11.44	1.00	21.00	1.00
#000000	1.84	21.00	1.00	21.00
##FFFFFF	11.44	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#373D4E

Deuteranopia (green-blind)

#2E374D

Tritanopia (blue-blind)

#004343

Achromatopsia (no color)

#3A3A3A

Design tokens & code

CSS

--color: #0d3f4d;
/* rgb */ color: rgb(13, 63, 77);
/* oklch */ color: oklch(34.3% 0.056 221.1);

Tailwind

colors: {
  custom: {
    50: '#58747e',
    500: '#0d3f4d',
    950: '#000000',
  },
}

SCSS

$custom: #0d3f4d;
$custom-light: #58747e;
$custom-dark: #000000;

JSON

{
  "hex": "#0d3f4d",
  "rgb": {
    "r": 13,
    "g": 63,
    "b": 77
  },
  "hsl": {
    "h": 193.125,
    "s": 71.111,
    "l": 17.647
  },
  "oklch": {
    "l": 0.3426,
    "c": 0.056,
    "h": 221.1
  },
  "luminance": 0.04176
}

Semantic roles & 50–950 ramp

primary

#0D3F4D

secondary

#88412E

accent

#613AEE

background

#F5F7F7

surface

#E9EDEE

border

#C5C8C9

text

#04080A

muted

#797B7C

Preview Lab

Preview with #0D3F4D

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

Preview Lab → · Contrast checker → · Palette generator →