#0F4B5B#0F4B5B

#0F4B5B is a dark, moderate cyan. Relative luminance 0.059; OKLCH L 38.4% C 0.064 H 220.4°. Best body text is #FFFFFF at 9.64:1 contrast (WCAG AA passes).

Color values

HEX#0F4B5B
RGBrgb(15, 75, 91)
HSLhsl(193, 72%, 21%)
HSVhsv(193, 84%, 36%)
CMYKcmyk(83.5%, 17.6%, 0%, 64.3%)
CIE-LABlab(29.13, -12.30, -14.74)
CIE-LCHlch(29.13, 19.20, 230.15°)
OKLaboklab(38.4% -0.0485 -0.0412)
OKLCHoklch(38.4% 0.064 220.4)
XYZxyz(4.6006, 5.8885, 10.7896)
Luminance0.0589 (WCAG relative)
Temperaturecool
Familycyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#0F4B5B #5B1F0F
analogous
#0F5B45 #0F4B5B #0F255B
triadic
#0F4B5B #5B0F4B #4B5B0F
tetradic
#0F4B5B #450F5B #5B1F0F #255B0F
square
#0F4B5B #450F5B #5B1F0F #255B0F
split-complementary
#0F4B5B #5B0F25 #5B450F
monochromatic
#04161A #062026 #0F4B5B #187690 #20A2C4

Accessibility & contrast

On white

9.64
#0F4B5B on #FFFFFF
AA ✓AA large ✓AAA ✓

On black

2.18
#0F4B5B on #000000
AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #0F4B5B
9.64:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##0F4B5B#FFFFFF#000000##FFFFFF
##0F4B5B1.009.642.189.64
#FFFFFF9.641.0021.001.00
#0000002.1821.001.0021.00
##FFFFFF9.641.0021.001.00

Color blindness preview

Protanopia (red-blind)
#41495C
Deuteranopia (green-blind)
#37415B
Tritanopia (blue-blind)
#005050
Achromatopsia (no color)
#454545

Design tokens & code

CSS
--color: #0f4b5b;
/* rgb */ color: rgb(15, 75, 91);
/* oklch */ color: oklch(38.4% 0.064 220.4);
Tailwind
colors: {
  custom: {
    50: '#5c7d89',
    500: '#0f4b5b',
    950: '#000000',
  },
}
SCSS
$custom: #0f4b5b;
$custom-light: #5c7d89;
$custom-dark: #000000;
JSON
{
  "hex": "#0f4b5b",
  "rgb": {
    "r": 15,
    "g": 75,
    "b": 91
  },
  "hsl": {
    "h": 192.632,
    "s": 71.698,
    "l": 20.784
  },
  "oklch": {
    "l": 0.38404,
    "c": 0.06366,
    "h": 220.4
  },
  "luminance": 0.05889
}

Semantic roles & 50–950 ramp

primary
#0F4B5B
secondary
#954631
accent
#5F39EE
background
#F5F7F8
surface
#E9EEF0
border
#C5C9CB
text
#05090B
muted
#797B7C

Preview Lab

Preview with #0F4B5B

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

Preview Lab → · Contrast checker → · Palette generator →

#0F4B5B Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva