#143B5C#143B5C

#143B5C is a dark, moderate cyan. Relative luminance 0.040; OKLCH L 34.2% C 0.073 H 247.5°. Best body text is #FFFFFF at 11.60:1 contrast (WCAG AA passes).

Color values

HEX	#143B5C
RGB	rgb(20, 59, 92)
HSL	hsl(208, 64%, 22%)
HSV	hsv(208, 78%, 36%)
CMYK	cmyk(78.3%, 35.9%, 0%, 63.9%)
CIE-LAB	lab(23.83, -0.97, -23.63)
CIE-LCH	lch(23.83, 23.65, 267.65°)
OKLab	oklab(34.24% -0.0277 -0.0671)
OKLCH	oklch(34.24% 0.073 247.5)
XYZ	xyz(3.7835, 4.0489, 10.7053)
Luminance	0.0405 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#143B5C #5C3514

analogous

#145C59 #143B5C #14175C

triadic

#143B5C #5C143B #3B5C14

tetradic

#143B5C #59145C #5C3514 #175C14

square

#143B5C #59145C #5C3514 #175C14

split-complementary

#143B5C #5C1417 #5C5914

monochromatic

#051019 #091B2A #143B5C #1F5B8E #2A7BC1

Accessibility & contrast

On white

11.60

#143B5C on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.81

#143B5C on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #143B5C

11.60:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##143B5C	#FFFFFF	#000000	##FFFFFF
##143B5C	1.00	11.60	1.81	11.60
#FFFFFF	11.60	1.00	21.00	1.00
#000000	1.81	21.00	1.00	21.00
##FFFFFF	11.60	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2C3C5D

Deuteranopia (green-blind)

#22365B

Tritanopia (blue-blind)

#004347

Achromatopsia (no color)

#393939

Design tokens & code

CSS

--color: #143b5c;
/* rgb */ color: rgb(20, 59, 92);
/* oklch */ color: oklch(34.2% 0.073 247.5);

Tailwind

colors: {
  custom: {
    50: '#5d708a',
    500: '#143b5c',
    950: '#000000',
  },
}

SCSS

$custom: #143b5c;
$custom-light: #5d708a;
$custom-dark: #000000;

JSON

{
  "hex": "#143b5c",
  "rgb": {
    "r": 20,
    "g": 59,
    "b": 92
  },
  "hsl": {
    "h": 207.5,
    "s": 64.286,
    "l": 21.961
  },
  "oklch": {
    "l": 0.34244,
    "c": 0.07257,
    "h": 247.5
  },
  "luminance": 0.04049
}

Semantic roles & 50–950 ramp

primary

#143B5C

secondary

#946238

accent

#8D41E7

background

#F5F6F8

surface

#E9ECF0

border

#C5C7CB

text

#05070B

muted

#797A7C

Preview Lab

Preview with #143B5C

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

Preview Lab → · Contrast checker → · Palette generator →