#0F305B#0F305B

#0F305B is a dark, moderate cyan. Relative luminance 0.030; OKLCH L 31.1% C 0.086 H 256.5°. Best body text is #FFFFFF at 13.17:1 contrast (WCAG AA passes).

Color values

HEX	#0F305B
RGB	rgb(15, 48, 91)
HSL	hsl(214, 72%, 21%)
HSV	hsv(214, 84%, 36%)
CMYK	cmyk(83.5%, 47.3%, 0%, 64.3%)
CIE-LAB	lab(19.93, 5.61, -29.20)
CIE-LCH	lch(19.93, 29.73, 280.88°)
OKLab	oklab(31.12% -0.0201 -0.0837)
OKLCH	oklch(31.12% 0.086 256.5)
XYZ	xyz(3.1416, 2.9704, 10.3033)
Luminance	0.0297 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#0F305B #5B3A0F

analogous

#0F565B #0F305B #140F5B

triadic

#0F305B #5B0F30 #305B0F

tetradic

#0F305B #5B0F56 #5B3A0F #0F5B14

square

#0F305B #5B0F56 #5B3A0F #0F5B14

split-complementary

#0F305B #5B140F #565B0F

monochromatic

#040E1A #061426 #0F305B #184C90 #2067C4

Accessibility & contrast

On white

13.17

#0F305B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.59

#0F305B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #0F305B

13.17:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##0F305B	#FFFFFF	#000000	##FFFFFF
##0F305B	1.00	13.17	1.59	13.17
#FFFFFF	13.17	1.00	21.00	1.00
#000000	1.59	21.00	1.00	21.00
##FFFFFF	13.17	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1A345D

Deuteranopia (green-blind)

#0B2D5A

Tritanopia (blue-blind)

#003A41

Achromatopsia (no color)

#303030

Design tokens & code

CSS

--color: #0f305b;
/* rgb */ color: rgb(15, 48, 91);
/* oklch */ color: oklch(31.1% 0.086 256.5);

Tailwind

colors: {
  custom: {
    50: '#5b678a',
    500: '#0f305b',
    950: '#000000',
  },
}

SCSS

$custom: #0f305b;
$custom-light: #5b678a;
$custom-dark: #000000;

JSON

{
  "hex": "#0f305b",
  "rgb": {
    "r": 15,
    "g": 48,
    "b": 91
  },
  "hsl": {
    "h": 213.947,
    "s": 71.698,
    "l": 20.784
  },
  "oklch": {
    "l": 0.31123,
    "c": 0.08603,
    "h": 256.5
  },
  "luminance": 0.02971
}

Semantic roles & 50–950 ramp

primary

#0F305B

secondary

#956931

accent

#A039EE

background

#F5F6F8

surface

#E9EBF0

border

#C5C6CB

text

#04060B

muted

#797A7C

Preview Lab

Preview with #0F305B

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

Preview Lab → · Contrast checker → · Palette generator →