#143D5A#143D5A

#143D5A is a dark, moderate cyan. Relative luminance 0.042; OKLCH L 34.7% C 0.068 H 243.2°. Best body text is #FFFFFF at 11.38:1 contrast (WCAG AA passes).

Color values

HEX#143D5A
RGBrgb(20, 61, 90)
HSLhsl(205, 64%, 22%)
HSVhsv(205, 78%, 35%)
CMYKcmyk(77.8%, 32.2%, 0%, 64.7%)
CIE-LABlab(24.40, -3.13, -21.43)
CIE-LCHlch(24.40, 21.66, 261.69°)
OKLaboklab(34.65% -0.0306 -0.0606)
OKLCHoklch(34.65% 0.068 243.2)
XYZxyz(3.8020, 4.2240, 10.2858)
Luminance0.0422 (WCAG relative)
Temperaturecool
Familycyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#143D5A #5A3114
analogous
#145A54 #143D5A #141A5A
triadic
#143D5A #5A143D #3D5A14
tetradic
#143D5A #54145A #5A3114 #1A5A14
square
#143D5A #54145A #5A3114 #1A5A14
split-complementary
#143D5A #5A141A #5A5414
monochromatic
#061119 #091B28 #143D5A #1F5F8C #2A81BE

Accessibility & contrast

On white

11.38
#143D5A on #FFFFFF
AA ✓AA large ✓AAA ✓

On black

1.84
#143D5A on #000000
AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #143D5A
11.38:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##143D5A#FFFFFF#000000##FFFFFF
##143D5A1.0011.381.8411.38
#FFFFFF11.381.0021.001.00
#0000001.8421.001.0021.00
##FFFFFF11.381.0021.001.00

Color blindness preview

Protanopia (red-blind)
#303E5B
Deuteranopia (green-blind)
#263759
Tritanopia (blue-blind)
#004447
Achromatopsia (no color)
#3A3A3A

Design tokens & code

CSS
--color: #143d5a;
/* rgb */ color: rgb(20, 61, 90);
/* oklch */ color: oklch(34.7% 0.068 243.2);
Tailwind
colors: {
  custom: {
    50: '#5c7289',
    500: '#143d5a',
    950: '#000000',
  },
}
SCSS
$custom: #143d5a;
$custom-light: #5c7289;
$custom-dark: #000000;
JSON
{
  "hex": "#143d5a",
  "rgb": {
    "r": 20,
    "g": 61,
    "b": 90
  },
  "hsl": {
    "h": 204.857,
    "s": 63.636,
    "l": 21.569
  },
  "oklch": {
    "l": 0.34654,
    "c": 0.06793,
    "h": 243.2
  },
  "luminance": 0.04224
}

Semantic roles & 50–950 ramp

primary
#143D5A
secondary
#925D38
accent
#8641E7
background
#F5F6F8
surface
#E9ECF0
border
#C5C7CB
text
#04070B
muted
#797A7C

Preview Lab

Preview with #143D5A

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

Preview Lab → · Contrast checker → · Palette generator →

#143D5A Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva