#143F63#143F63

#143F63 is a dark, moderate cyan. Relative luminance 0.046; OKLCH L 35.7% C 0.078 H 247.6°. Best body text is #FFFFFF at 10.93:1 contrast (WCAG AA passes).

Color values

HEX#143F63
RGBrgb(20, 63, 99)
HSLhsl(207, 66%, 23%)
HSVhsv(207, 80%, 39%)
CMYKcmyk(79.8%, 36.4%, 0%, 61.2%)
CIE-LABlab(25.58, -0.81, -25.43)
CIE-LCHlch(25.58, 25.44, 268.19°)
OKLaboklab(35.75% -0.0298 -0.0722)
OKLCHoklch(35.75% 0.078 247.6)
XYZxyz(4.3173, 4.6041, 12.4631)
Luminance0.0461 (WCAG relative)
Temperaturecool
Familycyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#143F63 #633814
analogous
#14635F #143F63 #141763
triadic
#143F63 #63143F #3F6314
tetradic
#143F63 #5F1463 #633814 #176314
square
#143F63 #5F1463 #633814 #176314
split-complementary
#143F63 #631417 #635F14
monochromatic
#051019 #0A1F30 #143F63 #1E5F96 #2980C9

Accessibility & contrast

On white

10.93
#143F63 on #FFFFFF
AA ✓AA large ✓AAA ✓

On black

1.92
#143F63 on #000000
AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #143F63
10.93:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##143F63#FFFFFF#000000##FFFFFF
##143F631.0010.931.9210.93
#FFFFFF10.931.0021.001.00
#0000001.9221.001.0021.00
##FFFFFF10.931.0021.001.00

Color blindness preview

Protanopia (red-blind)
#2E4165
Deuteranopia (green-blind)
#233962
Tritanopia (blue-blind)
#00484C
Achromatopsia (no color)
#3D3D3D

Design tokens & code

CSS
--color: #143f63;
/* rgb */ color: rgb(20, 63, 99);
/* oklch */ color: oklch(35.7% 0.078 247.6);
Tailwind
colors: {
  custom: {
    50: '#5e738f',
    500: '#143f63',
    950: '#000000',
  },
}
SCSS
$custom: #143f63;
$custom-light: #5e738f;
$custom-dark: #000000;
JSON
{
  "hex": "#143f63",
  "rgb": {
    "r": 20,
    "g": 63,
    "b": 99
  },
  "hsl": {
    "h": 207.342,
    "s": 66.387,
    "l": 23.333
  },
  "oklch": {
    "l": 0.35747,
    "c": 0.07814,
    "h": 247.6
  },
  "luminance": 0.04605
}

Semantic roles & 50–950 ramp

primary
#143F63
secondary
#9A6538
accent
#8C3EE9
background
#F5F6F8
surface
#EAECF0
border
#C6C7CB
text
#05080C
muted
#797B7D

Preview Lab

Preview with #143F63

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

Preview Lab → · Contrast checker → · Palette generator →

#143F63 Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva