#143A63#143A63

#143A63 is a dark, moderate cyan. Relative luminance 0.041; OKLCH L 34.4% C 0.084 H 252.9°. Best body text is #FFFFFF at 11.57:1 contrast (WCAG AA passes).

Color values

HEX	#143A63
RGB	rgb(20, 58, 99)
HSL	hsl(211, 66%, 23%)
HSV	hsv(211, 80%, 39%)
CMYK	cmyk(79.8%, 41.4%, 0%, 61.2%)
CIE-LAB	lab(23.92, 2.62, -28.05)
CIE-LCH	lch(23.92, 28.17, 275.33°)
OKLab	oklab(34.45% -0.0246 -0.08)
OKLCH	oklch(34.45% 0.084 252.9)
XYZ	xyz(4.0528, 4.0752, 12.3750)
Luminance	0.0408 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#143A63 #633D14

analogous

#146163 #143A63 #151463

triadic

#143A63 #63143A #3A6314

tetradic

#143A63 #631461 #633D14 #146315

square

#143A63 #631461 #633D14 #146315

split-complementary

#143A63 #631514 #616314

monochromatic

#050F19 #0A1C30 #143A63 #1E5896 #2976C9

Accessibility & contrast

On white

11.57

#143A63 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.82

#143A63 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #143A63

11.57:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##143A63	#FFFFFF	#000000	##FFFFFF
##143A63	1.00	11.57	1.82	11.57
#FFFFFF	11.57	1.00	21.00	1.00
#000000	1.82	21.00	1.00	21.00
##FFFFFF	11.57	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#273D65

Deuteranopia (green-blind)

#1A3662

Tritanopia (blue-blind)

#004449

Achromatopsia (no color)

#393939

Design tokens & code

CSS

--color: #143a63;
/* rgb */ color: rgb(20, 58, 99);
/* oklch */ color: oklch(34.4% 0.084 252.9);

Tailwind

colors: {
  custom: {
    50: '#5e6f8f',
    500: '#143a63',
    950: '#000000',
  },
}

SCSS

$custom: #143a63;
$custom-light: #5e6f8f;
$custom-dark: #000000;

JSON

{
  "hex": "#143a63",
  "rgb": {
    "r": 20,
    "g": 58,
    "b": 99
  },
  "hsl": {
    "h": 211.139,
    "s": 66.387,
    "l": 23.333
  },
  "oklch": {
    "l": 0.34448,
    "c": 0.08371,
    "h": 252.9
  },
  "luminance": 0.04076
}

Semantic roles & 50–950 ramp

primary

#143A63

secondary

#9A6B38

accent

#973EE9

background

#F5F6F8

surface

#EAECF0

border

#C6C7CB

text

#05070C

muted

#797A7D

Preview Lab

Preview with #143A63

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

Preview Lab → · Contrast checker → · Palette generator →