#143B53#143B53

#143B53 is a dark, moderate cyan. Relative luminance 0.039; OKLCH L 33.7% C 0.061 H 239.3°. Best body text is #FFFFFF at 11.80:1 contrast (WCAG AA passes).

Color values

HEX	#143B53
RGB	rgb(20, 59, 83)
HSL	hsl(203, 61%, 20%)
HSV	hsv(203, 76%, 33%)
CMYK	cmyk(75.9%, 28.9%, 0%, 67.5%)
CIE-LAB	lab(23.34, -4.61, -18.49)
CIE-LCH	lch(23.34, 19.06, 256.00°)
OKLab	oklab(33.69% -0.0309 -0.0521)
OKLCH	oklch(33.69% 0.061 239.3)
XYZ	xyz(3.4132, 3.9008, 8.7550)
Luminance	0.0390 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#143B53 #532C14

analogous

#14534B #143B53 #141C53

triadic

#143B53 #53143B #3B5314

tetradic

#143B53 #4B1453 #532C14 #1C5314

square

#143B53 #4B1453 #532C14 #1C5314

split-complementary

#143B53 #53141C #534B14

monochromatic

#061219 #081822 #143B53 #205E84 #2C81B6

Accessibility & contrast

On white

11.80

#143B53 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.78

#143B53 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #143B53

11.80:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##143B53	#FFFFFF	#000000	##FFFFFF
##143B53	1.00	11.80	1.78	11.80
#FFFFFF	11.80	1.00	21.00	1.00
#000000	1.78	21.00	1.00	21.00
##FFFFFF	11.80	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#303B54

Deuteranopia (green-blind)

#273553

Tritanopia (blue-blind)

#004143

Achromatopsia (no color)

#383838

Design tokens & code

CSS

--color: #143b53;
/* rgb */ color: rgb(20, 59, 83);
/* oklch */ color: oklch(33.7% 0.061 239.3);

Tailwind

colors: {
  custom: {
    50: '#5b7083',
    500: '#143b53',
    950: '#000000',
  },
}

SCSS

$custom: #143b53;
$custom-light: #5b7083;
$custom-dark: #000000;

JSON

{
  "hex": "#143b53",
  "rgb": {
    "r": 20,
    "g": 59,
    "b": 83
  },
  "hsl": {
    "h": 202.857,
    "s": 61.165,
    "l": 20.196
  },
  "oklch": {
    "l": 0.33694,
    "c": 0.06061,
    "h": 239.3
  },
  "luminance": 0.03901
}

Semantic roles & 50–950 ramp

primary

#143B53

secondary

#8B5738

accent

#8144E4

background

#F5F6F8

surface

#E9ECEF

border

#C5C7CA

text

#04070A

muted

#797A7C

Preview Lab

Preview with #143B53

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

Preview Lab → · Contrast checker → · Palette generator →