#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
RGB	rgb(20, 63, 94)
HSL	hsl(205, 65%, 22%)
HSV	hsv(205, 79%, 37%)
CMYK	cmyk(78.7%, 33%, 0%, 63.1%)
CIE-LAB	lab(25.29, -2.85, -22.63)
CIE-LCH	lch(25.29, 22.81, 262.83°)
OKLab	oklab(35.43% -0.0314 -0.0641)
OKLCH	oklch(35.43% 0.071 243.9)
XYZ	xyz(4.0856, 4.5114, 11.2430)
Luminance	0.0451 (WCAG relative)
Temperature	cool
Family	cyan

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
##143F5E	1.00	11.04	1.90	11.04
#FFFFFF	11.04	1.00	21.00	1.00
#000000	1.90	21.00	1.00	21.00
##FFFFFF	11.04	1.00	21.00	1.00

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 →