#0D303B#0D303B

#0D303B is a dark, muted cyan. Relative luminance 0.025; OKLCH L 29.0% C 0.044 H 222.4°. Best body text is #FFFFFF at 13.97:1 contrast (WCAG AA passes).

Color values

HEX	#0D303B
RGB	rgb(13, 48, 59)
HSL	hsl(194, 64%, 14%)
HSV	hsv(194, 78%, 23%)
CMYK	cmyk(78%, 18.6%, 0%, 76.9%)
CIE-LAB	lab(17.99, -8.18, -10.63)
CIE-LCH	lch(17.99, 13.42, 232.44°)
OKLab	oklab(28.97% -0.0325 -0.0297)
OKLCH	oklch(28.97% 0.044 222.4)
XYZ	xyz(2.0120, 2.5150, 4.5162)
Luminance	0.0251 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#0D303B #3B180D

analogous

#0D3B2F #0D303B #0D193B

triadic

#0D303B #3B0D30 #303B0D

tetradic

#0D303B #2F0D3B #3B180D #193B0D

square

#0D303B #2F0D3B #3B180D #193B0D

split-complementary

#0D303B #3B0D19 #3B2F0D

monochromatic

#061419 #061419 #0D303B #18596D #23829F

Accessibility & contrast

On white

13.97

#0D303B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.50

#0D303B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #0D303B

13.97:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##0D303B	#FFFFFF	#000000	##FFFFFF
##0D303B	1.00	13.97	1.50	13.97
#FFFFFF	13.97	1.00	21.00	1.00
#000000	1.50	21.00	1.00	21.00
##FFFFFF	13.97	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2A2F3C

Deuteranopia (green-blind)

#232A3B

Tritanopia (blue-blind)

#003334

Achromatopsia (no color)

#2C2C2C

Design tokens & code

CSS

--color: #0d303b;
/* rgb */ color: rgb(13, 48, 59);
/* oklch */ color: oklch(29.0% 0.044 222.4);

Tailwind

colors: {
  custom: {
    50: '#536871',
    500: '#0d303b',
    950: '#000000',
  },
}

SCSS

$custom: #0d303b;
$custom-light: #536871;
$custom-dark: #000000;

JSON

{
  "hex": "#0d303b",
  "rgb": {
    "r": 13,
    "g": 48,
    "b": 59
  },
  "hsl": {
    "h": 194.348,
    "s": 63.889,
    "l": 14.118
  },
  "oklch": {
    "l": 0.28966,
    "c": 0.04404,
    "h": 222.4
  },
  "luminance": 0.02515
}

Semantic roles & 50–950 ramp

primary

#0D303B

secondary

#773F2D

accent

#6941E7

background

#F4F6F6

surface

#E7EBEC

border

#C3C6C7

text

#030607

muted

#787A7A

Preview Lab

Preview with #0D303B

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

Preview Lab → · Contrast checker → · Palette generator →