#143D58#143D58

#143D58 is a dark, moderate cyan. Relative luminance 0.042; OKLCH L 34.5% C 0.065 H 241.3°. Best body text is #FFFFFF at 11.42:1 contrast (WCAG AA passes).

Color values

HEX	#143D58
RGB	rgb(20, 61, 88)
HSL	hsl(204, 63%, 21%)
HSV	hsv(204, 77%, 35%)
CMYK	cmyk(77.3%, 30.7%, 0%, 65.5%)
CIE-LAB	lab(24.29, -3.94, -20.29)
CIE-LCH	lch(24.29, 20.67, 259.02°)
OKLab	oklab(34.53% -0.0314 -0.0573)
OKLCH	oklch(34.53% 0.065 241.3)
XYZ	xyz(3.7180, 4.1904, 9.8435)
Luminance	0.0419 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#143D58 #582F14

analogous

#145851 #143D58 #141B58

triadic

#143D58 #58143D #3D5814

tetradic

#143D58 #511458 #582F14 #1B5814

square

#143D58 #511458 #582F14 #1B5814

split-complementary

#143D58 #58141B #585114

monochromatic

#061119 #091A26 #143D58 #1F608A #2B82BC

Accessibility & contrast

On white

11.42

#143D58 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.84

#143D58 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #143D58

11.42:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##143D58	#FFFFFF	#000000	##FFFFFF
##143D58	1.00	11.42	1.84	11.42
#FFFFFF	11.42	1.00	21.00	1.00
#000000	1.84	21.00	1.00	21.00
##FFFFFF	11.42	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#313D59

Deuteranopia (green-blind)

#273758

Tritanopia (blue-blind)

#004446

Achromatopsia (no color)

#3A3A3A

Design tokens & code

CSS

--color: #143d58;
/* rgb */ color: rgb(20, 61, 88);
/* oklch */ color: oklch(34.5% 0.065 241.3);

Tailwind

colors: {
  custom: {
    50: '#5c7287',
    500: '#143d58',
    950: '#000000',
  },
}

SCSS

$custom: #143d58;
$custom-light: #5c7287;
$custom-dark: #000000;

JSON

{
  "hex": "#143d58",
  "rgb": {
    "r": 20,
    "g": 61,
    "b": 88
  },
  "hsl": {
    "h": 203.824,
    "s": 62.963,
    "l": 21.176
  },
  "oklch": {
    "l": 0.34533,
    "c": 0.06534,
    "h": 241.3
  },
  "luminance": 0.04191
}

Semantic roles & 50–950 ramp

primary

#143D58

secondary

#905B38

accent

#8342E6

background

#F5F6F8

surface

#E9ECEF

border

#C5C7CA

text

#04070B

muted

#797A7C

Preview Lab

Preview with #143D58

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

Preview Lab → · Contrast checker → · Palette generator →