#143F59#143F59

#143F59 is a dark, moderate cyan. Relative luminance 0.044; OKLCH L 35.1% C 0.065 H 239.2°. Best body text is #FFFFFF at 11.14:1 contrast (WCAG AA passes).

Color values

HEX	#143F59
RGB	rgb(20, 63, 89)
HSL	hsl(203, 63%, 21%)
HSV	hsv(203, 78%, 35%)
CMYK	cmyk(77.5%, 29.2%, 0%, 65.1%)
CIE-LAB	lab(25.03, -4.86, -19.80)
CIE-LCH	lch(25.03, 20.38, 256.22°)
OKLab	oklab(35.14% -0.0333 -0.0558)
OKLCH	oklch(35.14% 0.065 239.2)
XYZ	xyz(3.8685, 4.4246, 10.0994)
Luminance	0.0442 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#143F59 #592E14

analogous

#145951 #143F59 #141D59

triadic

#143F59 #59143F #3F5914

tetradic

#143F59 #511459 #592E14 #1D5914

square

#143F59 #511459 #592E14 #1D5914

split-complementary

#143F59 #59141D #595114

monochromatic

#061219 #091C27 #143F59 #1F628B #2A86BD

Accessibility & contrast

On white

11.14

#143F59 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.89

#143F59 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #143F59

11.14:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##143F59	#FFFFFF	#000000	##FFFFFF
##143F59	1.00	11.14	1.89	11.14
#FFFFFF	11.14	1.00	21.00	1.00
#000000	1.89	21.00	1.00	21.00
##FFFFFF	11.14	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#333F5A

Deuteranopia (green-blind)

#293859

Tritanopia (blue-blind)

#004648

Achromatopsia (no color)

#3B3B3B

Design tokens & code

CSS

--color: #143f59;
/* rgb */ color: rgb(20, 63, 89);
/* oklch */ color: oklch(35.1% 0.065 239.2);

Tailwind

colors: {
  custom: {
    50: '#5c7388',
    500: '#143f59',
    950: '#000000',
  },
}

SCSS

$custom: #143f59;
$custom-light: #5c7388;
$custom-dark: #000000;

JSON

{
  "hex": "#143f59",
  "rgb": {
    "r": 20,
    "g": 63,
    "b": 89
  },
  "hsl": {
    "h": 202.609,
    "s": 63.303,
    "l": 21.373
  },
  "oklch": {
    "l": 0.35135,
    "c": 0.065,
    "h": 239.2
  },
  "luminance": 0.04425
}

Semantic roles & 50–950 ramp

primary

#143F59

secondary

#915938

accent

#8041E6

background

#F5F7F8

surface

#E9EDEF

border

#C5C8CA

text

#04080B

muted

#797B7C

Preview Lab

Preview with #143F59

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

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