#143F5F#143F5F

#143F5F is a dark, moderate cyan. Relative luminance 0.045; OKLCH L 35.5% C 0.073 H 244.7°. Best body text is #FFFFFF at 11.02:1 contrast (WCAG AA passes).

Color values

HEX#143F5F
RGBrgb(20, 63, 95)
HSLhsl(206, 65%, 23%)
HSVhsv(206, 79%, 37%)
CMYKcmyk(78.9%, 33.7%, 0%, 62.7%)
CIE-LABlab(25.35, -2.44, -23.19)
CIE-LCHlch(25.35, 23.32, 264.00°)
OKLaboklab(35.49% -0.0311 -0.0657)
OKLCHoklch(35.49% 0.073 244.7)
XYZxyz(4.1308, 4.5295, 11.4808)
Luminance0.0453 (WCAG relative)
Temperaturecool
Familycyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#143F5F #5F3414
analogous
#145F59 #143F5F #141A5F
triadic
#143F5F #5F143F #3F5F14
tetradic
#143F5F #59145F #5F3414 #1A5F14
square
#143F5F #59145F #5F3414 #1A5F14
split-complementary
#143F5F #5F141A #5F5914
monochromatic
#051119 #091D2C #143F5F #1F6192 #2982C4

Accessibility & contrast

On white

11.02
#143F5F on #FFFFFF
AA ✓AA large ✓AAA ✓

On black

1.91
#143F5F on #000000
AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #143F5F
11.02:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##143F5F#FFFFFF#000000##FFFFFF
##143F5F1.0011.021.9111.02
#FFFFFF11.021.0021.001.00
#0000001.9121.001.0021.00
##FFFFFF11.021.0021.001.00

Color blindness preview

Protanopia (red-blind)
#304060
Deuteranopia (green-blind)
#26395E
Tritanopia (blue-blind)
#00474A
Achromatopsia (no color)
#3C3C3C

Design tokens & code

CSS
--color: #143f5f;
/* rgb */ color: rgb(20, 63, 95);
/* oklch */ color: oklch(35.5% 0.073 244.7);
Tailwind
colors: {
  custom: {
    50: '#5d738c',
    500: '#143f5f',
    950: '#000000',
  },
}
SCSS
$custom: #143f5f;
$custom-light: #5d738c;
$custom-dark: #000000;
JSON
{
  "hex": "#143f5f",
  "rgb": {
    "r": 20,
    "g": 63,
    "b": 95
  },
  "hsl": {
    "h": 205.6,
    "s": 65.217,
    "l": 22.549
  },
  "oklch": {
    "l": 0.35495,
    "c": 0.07271,
    "h": 244.7
  },
  "luminance": 0.0453
}

Semantic roles & 50–950 ramp

primary
#143F5F
secondary
#976038
accent
#8840E8
background
#F5F7F8
surface
#E9EDF0
border
#C5C8CB
text
#05080C
muted
#797B7D

Preview Lab

Preview with #143F5F

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

Preview Lab → · Contrast checker → · Palette generator →

#143F5F Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva