#143B6B#143B6B

#143B6B is a dark, moderate cyan. Relative luminance 0.043; OKLCH L 35.3% C 0.094 H 255.5°. Best body text is #FFFFFF at 11.24:1 contrast (WCAG AA passes).

Color values

HEX#143B6B
RGBrgb(20, 59, 107)
HSLhsl(213, 69%, 25%)
HSVhsv(213, 81%, 42%)
CMYKcmyk(81.3%, 44.9%, 0%, 58%)
CIE-LABlab(24.76, 5.27, -31.88)
CIE-LCHlch(24.76, 32.31, 279.39°)
OKLaboklab(35.27% -0.0236 -0.0912)
OKLCHoklch(35.27% 0.094 255.5)
XYZxyz(4.5053, 4.3377, 14.5069)
Luminance0.0434 (WCAG relative)
Temperaturecool
Familycyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#143B6B #6B4414
analogous
#14676B #143B6B #18146B
triadic
#143B6B #6B143B #3B6B14
tetradic
#143B6B #6B1467 #6B4414 #146B18
square
#143B6B #6B1467 #6B4414 #146B18
split-complementary
#143B6B #6B1814 #676B14
monochromatic
#050E1A #0A1F37 #143B6B #1E579F #2774D2

Accessibility & contrast

On white

11.24
#143B6B on #FFFFFF
AA ✓AA large ✓AAA ✓

On black

1.87
#143B6B on #000000
AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #143B6B
11.24:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##143B6B#FFFFFF#000000##FFFFFF
##143B6B1.0011.241.8711.24
#FFFFFF11.241.0021.001.00
#0000001.8721.001.0021.00
##FFFFFF11.241.0021.001.00

Color blindness preview

Protanopia (red-blind)
#233F6D
Deuteranopia (green-blind)
#13376A
Tritanopia (blue-blind)
#00464D
Achromatopsia (no color)
#3B3B3B

Design tokens & code

CSS
--color: #143b6b;
/* rgb */ color: rgb(20, 59, 107);
/* oklch */ color: oklch(35.3% 0.094 255.5);
Tailwind
colors: {
  custom: {
    50: '#607096',
    500: '#143b6b',
    950: '#000000',
  },
}
SCSS
$custom: #143b6b;
$custom-light: #607096;
$custom-dark: #000000;
JSON
{
  "hex": "#143b6b",
  "rgb": {
    "r": 20,
    "g": 59,
    "b": 107
  },
  "hsl": {
    "h": 213.103,
    "s": 68.504,
    "l": 24.902
  },
  "oklch": {
    "l": 0.35268,
    "c": 0.09422,
    "h": 255.5
  },
  "luminance": 0.04338
}

Semantic roles & 50–950 ramp

primary
#143B6B
secondary
#A27339
accent
#9D3CEB
background
#F6F6F9
surface
#EBECF2
border
#C6C7CC
text
#05070D
muted
#7A7A7E

Preview Lab

Preview with #143B6B

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

Preview Lab → · Contrast checker → · Palette generator →

#143B6B Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva