#0F4D5B#0F4D5B

#0F4D5B is a dark, moderate cyan. Relative luminance 0.062; OKLCH L 39.0% C 0.063 H 217.0°. Best body text is #FFFFFF at 9.40:1 contrast (WCAG AA passes).

Color values

HEX	#0F4D5B
RGB	rgb(15, 77, 91)
HSL	hsl(191, 72%, 21%)
HSV	hsv(191, 84%, 36%)
CMYK	cmyk(83.5%, 15.4%, 0%, 64.3%)
CIE-LAB	lab(29.82, -13.49, -13.68)
CIE-LCH	lch(29.82, 19.21, 225.39°)
OKLab	oklab(38.96% -0.0507 -0.0382)
OKLCH	oklch(38.96% 0.063 217)
XYZ	xyz(4.7384, 6.1641, 10.8355)
Luminance	0.0617 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#0F4D5B #5B1D0F

analogous

#0F5B43 #0F4D5B #0F275B

triadic

#0F4D5B #5B0F4D #4D5B0F

tetradic

#0F4D5B #430F5B #5B1D0F #275B0F

square

#0F4D5B #430F5B #5B1D0F #275B0F

split-complementary

#0F4D5B #5B0F27 #5B430F

monochromatic

#04161A #062126 #0F4D5B #187990 #20A6C4

Accessibility & contrast

On white

9.40

#0F4D5B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.23

#0F4D5B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #0F4D5B

9.40:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##0F4D5B	#FFFFFF	#000000	##FFFFFF
##0F4D5B	1.00	9.40	2.23	9.40
#FFFFFF	9.40	1.00	21.00	1.00
#000000	2.23	21.00	1.00	21.00
##FFFFFF	9.40	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#444A5C

Deuteranopia (green-blind)

#3A435B

Tritanopia (blue-blind)

#005251

Achromatopsia (no color)

#464646

Design tokens & code

CSS

--color: #0f4d5b;
/* rgb */ color: rgb(15, 77, 91);
/* oklch */ color: oklch(39.0% 0.063 217.0);

Tailwind

colors: {
  custom: {
    50: '#5c7f89',
    500: '#0f4d5b',
    950: '#000000',
  },
}

SCSS

$custom: #0f4d5b;
$custom-light: #5c7f89;
$custom-dark: #000000;

JSON

{
  "hex": "#0f4d5b",
  "rgb": {
    "r": 15,
    "g": 77,
    "b": 91
  },
  "hsl": {
    "h": 191.053,
    "s": 71.698,
    "l": 20.784
  },
  "oklch": {
    "l": 0.38962,
    "c": 0.06349,
    "h": 217
  },
  "luminance": 0.06165
}

Semantic roles & 50–950 ramp

primary

#0F4D5B

secondary

#954431

accent

#5B39EE

background

#F5F7F8

surface

#E9EEF0

border

#C5C9CB

text

#050A0B

muted

#797C7C

Preview Lab

Preview with #0F4D5B

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

Preview Lab → · Contrast checker → · Palette generator →