#143A73#143A73

#143A73 is a dark, moderate blue. Relative luminance 0.044; OKLCH L 35.6% C 0.107 H 258.7°. Best body text is #FFFFFF at 11.15:1 contrast (WCAG AA passes).

Color values

HEX	#143A73
RGB	rgb(20, 58, 115)
HSL	hsl(216, 70%, 26%)
HSV	hsv(216, 83%, 45%)
CMYK	cmyk(82.6%, 49.6%, 0%, 54.9%)
CIE-LAB	lab(24.99, 9.35, -36.62)
CIE-LCH	lch(24.99, 37.79, 284.32°)
OKLab	oklab(35.62% -0.021 -0.1052)
OKLCH	oklch(35.62% 0.107 258.7)
XYZ	xyz(4.8949, 4.4121, 16.8100)
Luminance	0.0441 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#143A73 #734D14

analogous

#146A73 #143A73 #1E1473

triadic

#143A73 #73143A #3A7314

tetradic

#143A73 #73146A #734D14 #14731E

square

#143A73 #73146A #734D14 #14731E

split-complementary

#143A73 #731E14 #6A7314

monochromatic

#050D1A #0B203F #143A73 #1D54A7 #286FDA

Accessibility & contrast

On white

11.15

#143A73 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.88

#143A73 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #143A73

11.15:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##143A73	#FFFFFF	#000000	##FFFFFF
##143A73	1.00	11.15	1.88	11.15
#FFFFFF	11.15	1.00	21.00	1.00
#000000	1.88	21.00	1.00	21.00
##FFFFFF	11.15	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1A4075

Deuteranopia (green-blind)

#003772

Tritanopia (blue-blind)

#004851

Achromatopsia (no color)

#3B3B3B

Design tokens & code

CSS

--color: #143a73;
/* rgb */ color: rgb(20, 58, 115);
/* oklch */ color: oklch(35.6% 0.107 258.7);

Tailwind

colors: {
  custom: {
    50: '#626f9c',
    500: '#143a73',
    950: '#000000',
  },
}

SCSS

$custom: #143a73;
$custom-light: #626f9c;
$custom-dark: #000000;

JSON

{
  "hex": "#143a73",
  "rgb": {
    "r": 20,
    "g": 58,
    "b": 115
  },
  "hsl": {
    "h": 216,
    "s": 70.37,
    "l": 26.471
  },
  "oklch": {
    "l": 0.35624,
    "c": 0.10727,
    "h": 258.7
  },
  "luminance": 0.04413
}

Semantic roles & 50–950 ramp

primary

#143A73

secondary

#A97D3A

accent

#A63BED

background

#F6F6F9

surface

#EBECF2

border

#C6C7CC

text

#06070E

muted

#7A7A7E

Preview Lab

Preview with #143A73

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

Preview Lab → · Contrast checker → · Palette generator →