#143F80#143F80

#143F80 is a dark, moderate blue. Relative luminance 0.053; OKLCH L 37.8% C 0.120 H 259.0°. Best body text is #FFFFFF at 10.23:1 contrast (WCAG AA passes).

Color values

HEX	#143F80
RGB	rgb(20, 63, 128)
HSL	hsl(216, 73%, 29%)
HSV	hsv(216, 84%, 50%)
CMYK	cmyk(84.4%, 50.8%, 0%, 49.8%)
CIE-LAB	lab(27.47, 11.29, -40.83)
CIE-LCH	lch(27.47, 42.36, 285.46°)
OKLab	oklab(37.83% -0.0229 -0.1175)
OKLCH	oklch(37.83% 0.12 259)
XYZ	xyz(5.9609, 5.2615, 21.1193)
Luminance	0.0526 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#143F80 #805514

analogous

#147580 #143F80 #1F1480

triadic

#143F80 #80143F #3F8014

tetradic

#143F80 #801475 #805514 #14801F

square

#143F80 #801475 #805514 #14801F

split-complementary

#143F80 #801F14 #758014

monochromatic

#040D1A #0C254B #143F80 #1C59B5 #3075DF

Accessibility & contrast

On white

10.23

#143F80 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.05

#143F80 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #143F80

10.23:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##143F80	#FFFFFF	#000000	##FFFFFF
##143F80	1.00	10.23	2.05	10.23
#FFFFFF	10.23	1.00	21.00	1.00
#000000	2.05	21.00	1.00	21.00
##FFFFFF	10.23	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#184682

Deuteranopia (green-blind)

#003C7F

Tritanopia (blue-blind)

#004F59

Achromatopsia (no color)

#414141

Design tokens & code

CSS

--color: #143f80;
/* rgb */ color: rgb(20, 63, 128);
/* oklch */ color: oklch(37.8% 0.120 259.0);

Tailwind

colors: {
  custom: {
    50: '#6573a5',
    500: '#143f80',
    950: '#000000',
  },
}

SCSS

$custom: #143f80;
$custom-light: #6573a5;
$custom-dark: #000000;

JSON

{
  "hex": "#143f80",
  "rgb": {
    "r": 20,
    "g": 63,
    "b": 128
  },
  "hsl": {
    "h": 216.111,
    "s": 72.973,
    "l": 29.02
  },
  "oklch": {
    "l": 0.37827,
    "c": 0.1197,
    "h": 259
  },
  "luminance": 0.05262
}

Semantic roles & 50–950 ramp

primary

#143F80

secondary

#B5843B

accent

#A738F0

background

#F6F6FA

surface

#EBECF4

border

#C6C7CE

text

#07080F

muted

#7A7B7F

Preview Lab

Preview with #143F80

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

Preview Lab → · Contrast checker → · Palette generator →