#143E59#143E59

#143E59 is a dark, moderate cyan. Relative luminance 0.043; OKLCH L 34.9% C 0.066 H 240.8°. Best body text is #FFFFFF at 11.27:1 contrast (WCAG AA passes).

Color values

HEX	#143E59
RGB	rgb(20, 62, 89)
HSL	hsl(203, 63%, 21%)
HSV	hsv(203, 78%, 35%)
CMYK	cmyk(77.5%, 30.3%, 0%, 65.1%)
CIE-LAB	lab(24.69, -4.20, -20.33)
CIE-LCH	lch(24.69, 20.76, 258.33°)
OKLab	oklab(34.86% -0.0321 -0.0574)
OKLCH	oklch(34.86% 0.066 240.8)
XYZ	xyz(3.8136, 4.3148, 10.0811)
Luminance	0.0432 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#143E59 #592F14

analogous

#145952 #143E59 #141C59

triadic

#143E59 #59143E #3E5914

tetradic

#143E59 #521459 #592F14 #1C5914

square

#143E59 #521459 #592F14 #1C5914

split-complementary

#143E59 #59141C #595214

monochromatic

#061119 #091B27 #143E59 #1F618B #2A84BD

Accessibility & contrast

On white

11.27

#143E59 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.86

#143E59 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #143E59

11.27:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##143E59	#FFFFFF	#000000	##FFFFFF
##143E59	1.00	11.27	1.86	11.27
#FFFFFF	11.27	1.00	21.00	1.00
#000000	1.86	21.00	1.00	21.00
##FFFFFF	11.27	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#323E5A

Deuteranopia (green-blind)

#283859

Tritanopia (blue-blind)

#004547

Achromatopsia (no color)

#3B3B3B

Design tokens & code

CSS

--color: #143e59;
/* rgb */ color: rgb(20, 62, 89);
/* oklch */ color: oklch(34.9% 0.066 240.8);

Tailwind

colors: {
  custom: {
    50: '#5c7388',
    500: '#143e59',
    950: '#000000',
  },
}

SCSS

$custom: #143e59;
$custom-light: #5c7388;
$custom-dark: #000000;

JSON

{
  "hex": "#143e59",
  "rgb": {
    "r": 20,
    "g": 62,
    "b": 89
  },
  "hsl": {
    "h": 203.478,
    "s": 63.303,
    "l": 21.373
  },
  "oklch": {
    "l": 0.34864,
    "c": 0.06579,
    "h": 240.8
  },
  "luminance": 0.04315
}

Semantic roles & 50–950 ramp

primary

#143E59

secondary

#915B38

accent

#8241E6

background

#F5F6F8

surface

#E9ECEF

border

#C5C7CA

text

#04080B

muted

#797B7C

Preview Lab

Preview with #143E59

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

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