#143B5B#143B5B

#143B5B is a dark, moderate cyan. Relative luminance 0.040; OKLCH L 34.2% C 0.071 H 246.8°. Best body text is #FFFFFF at 11.63:1 contrast (WCAG AA passes).

Color values

HEX#143B5B
RGBrgb(20, 59, 91)
HSLhsl(207, 64%, 22%)
HSVhsv(207, 78%, 36%)
CMYKcmyk(78%, 35.2%, 0%, 64.3%)
CIE-LABlab(23.78, -1.38, -23.07)
CIE-LCHlch(23.78, 23.11, 266.58°)
OKLaboklab(34.18% -0.0281 -0.0654)
OKLCHoklch(34.18% 0.071 246.8)
XYZxyz(3.7401, 4.0316, 10.4766)
Luminance0.0403 (WCAG relative)
Temperaturecool
Familycyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#143B5B #5B3414
analogous
#145B58 #143B5B #14185B
triadic
#143B5B #5B143B #3B5B14
tetradic
#143B5B #58145B #5B3414 #185B14
square
#143B5B #58145B #5B3414 #185B14
split-complementary
#143B5B #5B1418 #5B5814
monochromatic
#061019 #091A29 #143B5B #1F5C8D #2A7CBF

Accessibility & contrast

On white

11.63
#143B5B on #FFFFFF
AA ✓AA large ✓AAA ✓

On black

1.81
#143B5B on #000000
AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #143B5B
11.63:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##143B5B#FFFFFF#000000##FFFFFF
##143B5B1.0011.631.8111.63
#FFFFFF11.631.0021.001.00
#0000001.8121.001.0021.00
##FFFFFF11.631.0021.001.00

Color blindness preview

Protanopia (red-blind)
#2C3C5C
Deuteranopia (green-blind)
#22365A
Tritanopia (blue-blind)
#004346
Achromatopsia (no color)
#393939

Design tokens & code

CSS
--color: #143b5b;
/* rgb */ color: rgb(20, 59, 91);
/* oklch */ color: oklch(34.2% 0.071 246.8);
Tailwind
colors: {
  custom: {
    50: '#5c7089',
    500: '#143b5b',
    950: '#000000',
  },
}
SCSS
$custom: #143b5b;
$custom-light: #5c7089;
$custom-dark: #000000;
JSON
{
  "hex": "#143b5b",
  "rgb": {
    "r": 20,
    "g": 59,
    "b": 91
  },
  "hsl": {
    "h": 207.042,
    "s": 63.964,
    "l": 21.765
  },
  "oklch": {
    "l": 0.3418,
    "c": 0.07119,
    "h": 246.8
  },
  "luminance": 0.04032
}

Semantic roles & 50–950 ramp

primary
#143B5B
secondary
#936138
accent
#8C41E7
background
#F5F6F8
surface
#E9ECF0
border
#C5C7CB
text
#05070B
muted
#797A7C

Preview Lab

Preview with #143B5B

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

Preview Lab → · Contrast checker → · Palette generator →

#143B5B Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva