#0F303B#0F303B

#0F303B is a dark, muted cyan. Relative luminance 0.025; OKLCH L 29.0% C 0.043 H 223.3°. Best body text is #FFFFFF at 13.94:1 contrast (WCAG AA passes).

Color values

HEX	#0F303B
RGB	rgb(15, 48, 59)
HSL	hsl(195, 59%, 15%)
HSV	hsv(195, 75%, 23%)
CMYK	cmyk(74.6%, 18.6%, 0%, 76.9%)
CIE-LAB	lab(18.06, -7.78, -10.52)
CIE-LCH	lch(18.06, 13.08, 233.51°)
OKLab	oklab(29.04% -0.0311 -0.0293)
OKLCH	oklch(29.04% 0.043 223.3)
XYZ	xyz(2.0431, 2.5310, 4.5177)
Luminance	0.0253 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#0F303B #3B1A0F

analogous

#0F3B30 #0F303B #0F1A3B

triadic

#0F303B #3B0F30 #303B0F

tetradic

#0F303B #300F3B #3B1A0F #1A3B0F

square

#0F303B #300F3B #3B1A0F #1A3B0F

split-complementary

#0F303B #3B0F1A #3B300F

monochromatic

#061418 #061418 #0F303B #1B586C #287F9D

Accessibility & contrast

On white

13.94

#0F303B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.51

#0F303B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #0F303B

13.94:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##0F303B	#FFFFFF	#000000	##FFFFFF
##0F303B	1.00	13.94	1.51	13.94
#FFFFFF	13.94	1.00	21.00	1.00
#000000	1.51	21.00	1.00	21.00
##FFFFFF	13.94	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2A2F3C

Deuteranopia (green-blind)

#242A3B

Tritanopia (blue-blind)

#003334

Achromatopsia (no color)

#2C2C2C

Design tokens & code

CSS

--color: #0f303b;
/* rgb */ color: rgb(15, 48, 59);
/* oklch */ color: oklch(29.0% 0.043 223.3);

Tailwind

colors: {
  custom: {
    50: '#536871',
    500: '#0f303b',
    950: '#000000',
  },
}

SCSS

$custom: #0f303b;
$custom-light: #536871;
$custom-dark: #000000;

JSON

{
  "hex": "#0f303b",
  "rgb": {
    "r": 15,
    "g": 48,
    "b": 59
  },
  "hsl": {
    "h": 195,
    "s": 59.459,
    "l": 14.51
  },
  "oklch": {
    "l": 0.29044,
    "c": 0.04278,
    "h": 223.3
  },
  "luminance": 0.02531
}

Semantic roles & 50–950 ramp

primary

#0F303B

secondary

#754230

accent

#6D45E3

background

#F5F6F6

surface

#E8EBEC

border

#C4C6C7

text

#030607

muted

#787A7A

Preview Lab

Preview with #0F303B

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

Preview Lab → · Contrast checker → · Palette generator →