#0F3F4A#0F3F4A

#0F3F4A is a dark, muted cyan. Relative luminance 0.042; OKLCH L 34.2% C 0.053 H 216.5°. Best body text is #FFFFFF at 11.47:1 contrast (WCAG AA passes).

Color values

HEX	#0F3F4A
RGB	rgb(15, 63, 74)
HSL	hsl(191, 66%, 17%)
HSV	hsv(191, 80%, 29%)
CMYK	cmyk(79.7%, 14.9%, 0%, 71%)
CIE-LAB	lab(24.16, -11.50, -11.29)
CIE-LCH	lch(24.16, 16.11, 224.47°)
OKLab	oklab(34.17% -0.0426 -0.0315)
OKLCH	oklch(34.17% 0.053 216.5)
XYZ	xyz(3.2100, 4.1506, 7.1092)
Luminance	0.0415 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#0F3F4A #4A1A0F

analogous

#0F4A37 #0F3F4A #0F224A

triadic

#0F3F4A #4A0F3F #3F4A0F

tetradic

#0F3F4A #370F4A #4A1A0F #224A0F

square

#0F3F4A #370F4A #4A1A0F #224A0F

split-complementary

#0F3F4A #4A0F22 #4A370F

monochromatic

#051619 #051619 #0F3F4A #196A7D #2496B0

Accessibility & contrast

On white

11.47

#0F3F4A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.83

#0F3F4A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #0F3F4A

11.47:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##0F3F4A	#FFFFFF	#000000	##FFFFFF
##0F3F4A	1.00	11.47	1.83	11.47
#FFFFFF	11.47	1.00	21.00	1.00
#000000	1.83	21.00	1.00	21.00
##FFFFFF	11.47	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#383D4B

Deuteranopia (green-blind)

#2F374A

Tritanopia (blue-blind)

#004342

Achromatopsia (no color)

#393939

Design tokens & code

CSS

--color: #0f3f4a;
/* rgb */ color: rgb(15, 63, 74);
/* oklch */ color: oklch(34.2% 0.053 216.5);

Tailwind

colors: {
  custom: {
    50: '#58747c',
    500: '#0f3f4a',
    950: '#000000',
  },
}

SCSS

$custom: #0f3f4a;
$custom-light: #58747c;
$custom-dark: #000000;

JSON

{
  "hex": "#0f3f4a",
  "rgb": {
    "r": 15,
    "g": 63,
    "b": 74
  },
  "hsl": {
    "h": 191.186,
    "s": 66.292,
    "l": 17.451
  },
  "oklch": {
    "l": 0.34165,
    "c": 0.05296,
    "h": 216.5
  },
  "luminance": 0.04151
}

Semantic roles & 50–950 ramp

primary

#0F3F4A

secondary

#844030

accent

#5E3FE9

background

#F5F7F7

surface

#E9EDEE

border

#C5C8C9

text

#040809

muted

#797B7B

Preview Lab

Preview with #0F3F4A

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

Preview Lab → · Contrast checker → · Palette generator →