#143B5D#143B5D

#143B5D is a dark, moderate cyan. Relative luminance 0.041; OKLCH L 34.3% C 0.074 H 248.2°. Best body text is #FFFFFF at 11.58:1 contrast (WCAG AA passes).

Color values

HEX	#143B5D
RGB	rgb(20, 59, 93)
HSL	hsl(208, 65%, 22%)
HSV	hsv(208, 78%, 36%)
CMYK	cmyk(78.5%, 36.6%, 0%, 63.5%)
CIE-LAB	lab(23.89, -0.56, -24.19)
CIE-LCH	lch(23.89, 24.20, 268.68°)
OKLab	oklab(34.31% -0.0274 -0.0687)
OKLCH	oklch(34.31% 0.074 248.2)
XYZ	xyz(3.8275, 4.0665, 10.9370)
Luminance	0.0407 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#143B5D #5D3614

analogous

#145D5B #143B5D #14175D

triadic

#143B5D #5D143B #3B5D14

tetradic

#143B5D #5B145D #5D3614 #175D14

square

#143B5D #5B145D #5D3614 #175D14

split-complementary

#143B5D #5D1417 #5D5B14

monochromatic

#051019 #091B2B #143B5D #1F5B8F #2A7BC2

Accessibility & contrast

On white

11.58

#143B5D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.81

#143B5D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #143B5D

11.58:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##143B5D	#FFFFFF	#000000	##FFFFFF
##143B5D	1.00	11.58	1.81	11.58
#FFFFFF	11.58	1.00	21.00	1.00
#000000	1.81	21.00	1.00	21.00
##FFFFFF	11.58	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2C3D5E

Deuteranopia (green-blind)

#21365C

Tritanopia (blue-blind)

#004347

Achromatopsia (no color)

#393939

Design tokens & code

CSS

--color: #143b5d;
/* rgb */ color: rgb(20, 59, 93);
/* oklch */ color: oklch(34.3% 0.074 248.2);

Tailwind

colors: {
  custom: {
    50: '#5d708b',
    500: '#143b5d',
    950: '#000000',
  },
}

SCSS

$custom: #143b5d;
$custom-light: #5d708b;
$custom-dark: #000000;

JSON

{
  "hex": "#143b5d",
  "rgb": {
    "r": 20,
    "g": 59,
    "b": 93
  },
  "hsl": {
    "h": 207.945,
    "s": 64.602,
    "l": 22.157
  },
  "oklch": {
    "l": 0.34308,
    "c": 0.07397,
    "h": 248.2
  },
  "luminance": 0.04067
}

Semantic roles & 50–950 ramp

primary

#143B5D

secondary

#956338

accent

#8E40E8

background

#F5F6F8

surface

#E9ECF0

border

#C5C7CB

text

#05070C

muted

#797A7D

Preview Lab

Preview with #143B5D

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

Preview Lab → · Contrast checker → · Palette generator →