#143B71#143B71

#143B71 is a dark, moderate cyan. Relative luminance 0.045; OKLCH L 35.7% C 0.103 H 257.5°. Best body text is #FFFFFF at 11.09:1 contrast (WCAG AA passes).

Color values

HEX	#143B71
RGB	rgb(20, 59, 113)
HSL	hsl(215, 70%, 26%)
HSV	hsv(215, 82%, 44%)
CMYK	cmyk(82.3%, 47.8%, 0%, 55.7%)
CIE-LAB	lab(25.16, 7.80, -35.07)
CIE-LCH	lch(25.16, 35.92, 282.54°)
OKLab	oklab(35.71% -0.0222 -0.1006)
OKLCH	oklch(35.71% 0.103 257.5)
XYZ	xyz(4.8320, 4.4683, 16.2274)
Luminance	0.0447 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#143B71 #714A14

analogous

#146971 #143B71 #1B1471

triadic

#143B71 #71143B #3B7114

tetradic

#143B71 #711469 #714A14 #14711B

square

#143B71 #711469 #714A14 #14711B

split-complementary

#143B71 #711B14 #697114

monochromatic

#050E1A #0B203D #143B71 #1D56A5 #2771D9

Accessibility & contrast

On white

11.09

#143B71 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.89

#143B71 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #143B71

11.09:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##143B71	#FFFFFF	#000000	##FFFFFF
##143B71	1.00	11.09	1.89	11.09
#FFFFFF	11.09	1.00	21.00	1.00
#000000	1.89	21.00	1.00	21.00
##FFFFFF	11.09	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1E4073

Deuteranopia (green-blind)

#083870

Tritanopia (blue-blind)

#004850

Achromatopsia (no color)

#3C3C3C

Design tokens & code

CSS

--color: #143b71;
/* rgb */ color: rgb(20, 59, 113);
/* oklch */ color: oklch(35.7% 0.103 257.5);

Tailwind

colors: {
  custom: {
    50: '#62709a',
    500: '#143b71',
    950: '#000000',
  },
}

SCSS

$custom: #143b71;
$custom-light: #62709a;
$custom-dark: #000000;

JSON

{
  "hex": "#143b71",
  "rgb": {
    "r": 20,
    "g": 59,
    "b": 113
  },
  "hsl": {
    "h": 214.839,
    "s": 69.925,
    "l": 26.078
  },
  "oklch": {
    "l": 0.35713,
    "c": 0.10304,
    "h": 257.5
  },
  "luminance": 0.04469
}

Semantic roles & 50–950 ramp

primary

#143B71

secondary

#A77939

accent

#A23BED

background

#F6F6F9

surface

#EBECF2

border

#C6C7CC

text

#06070E

muted

#7A7A7E

Preview Lab

Preview with #143B71

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

Preview Lab → · Contrast checker → · Palette generator →