#143F5E#143F5E

#143F5E is a dark, moderate cyan. Relative luminance 0.045; OKLCH L 35.4% C 0.071 H 243.9°. Best body text is #FFFFFF at 11.04:1 contrast (WCAG AA passes).

Color values

HEX#143F5E
RGBrgb(20, 63, 94)
HSLhsl(205, 65%, 22%)
HSVhsv(205, 79%, 37%)
CMYKcmyk(78.7%, 33%, 0%, 63.1%)
CIE-LABlab(25.29, -2.85, -22.63)
CIE-LCHlch(25.29, 22.81, 262.83°)
OKLaboklab(35.43% -0.0314 -0.0641)
OKLCHoklch(35.43% 0.071 243.9)
XYZxyz(4.0856, 4.5114, 11.2430)
Luminance0.0451 (WCAG relative)
Temperaturecool
Familycyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#143F5E #5E3314
analogous
#145E58 #143F5E #141A5E
triadic
#143F5E #5E143F #3F5E14
tetradic
#143F5E #58145E #5E3314 #1A5E14
square
#143F5E #58145E #5E3314 #1A5E14
split-complementary
#143F5E #5E141A #5E5814
monochromatic
#051119 #091D2C #143F5E #1F6190 #2983C3

Accessibility & contrast

On white

11.04
#143F5E on #FFFFFF
AA ✓AA large ✓AAA ✓

On black

1.90
#143F5E on #000000
AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #143F5E
11.04:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##143F5E#FFFFFF#000000##FFFFFF
##143F5E1.0011.041.9011.04
#FFFFFF11.041.0021.001.00
#0000001.9021.001.0021.00
##FFFFFF11.041.0021.001.00

Color blindness preview

Protanopia (red-blind)
#31405F
Deuteranopia (green-blind)
#26395D
Tritanopia (blue-blind)
#00474A
Achromatopsia (no color)
#3C3C3C

Design tokens & code

CSS
--color: #143f5e;
/* rgb */ color: rgb(20, 63, 94);
/* oklch */ color: oklch(35.4% 0.071 243.9);
Tailwind
colors: {
  custom: {
    50: '#5d738c',
    500: '#143f5e',
    950: '#000000',
  },
}
SCSS
$custom: #143f5e;
$custom-light: #5d738c;
$custom-dark: #000000;
JSON
{
  "hex": "#143f5e",
  "rgb": {
    "r": 20,
    "g": 63,
    "b": 94
  },
  "hsl": {
    "h": 205.135,
    "s": 64.912,
    "l": 22.353
  },
  "oklch": {
    "l": 0.35434,
    "c": 0.07139,
    "h": 243.9
  },
  "luminance": 0.04512
}

Semantic roles & 50–950 ramp

primary
#143F5E
secondary
#965F38
accent
#8640E8
background
#F5F7F8
surface
#E9EDF0
border
#C5C8CB
text
#05080C
muted
#797B7D

Preview Lab

Preview with #143F5E

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

Preview Lab → · Contrast checker → · Palette generator →

#143F5E Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva