#143A7F#143A7F

#143A7F is a dark, vivid blue. Relative luminance 0.047; OKLCH L 36.6% C 0.125 H 261.2°. Best body text is #FFFFFF at 10.82:1 contrast (WCAG AA passes).

Color values

HEX	#143A7F
RGB	rgb(20, 58, 127)
HSL	hsl(219, 73%, 29%)
HSV	hsv(219, 84%, 50%)
CMYK	cmyk(84.3%, 54.3%, 0%, 50.2%)
CIE-LAB	lab(25.88, 14.39, -42.77)
CIE-LCH	lch(25.88, 45.12, 288.60°)
OKLab	oklab(36.59% -0.0192 -0.1233)
OKLCH	oklch(36.59% 0.125 261.2)
XYZ	xyz(5.6309, 4.7065, 20.6862)
Luminance	0.0471 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#143A7F #7F5914

analogous

#14707F #143A7F #24147F

triadic

#143A7F #7F143A #3A7F14

tetradic

#143A7F #7F1470 #7F5914 #147F24

square

#143A7F #7F1470 #7F5914 #147F24

split-complementary

#143A7F #7F2414 #707F14

monochromatic

#040C1A #0C224A #143A7F #1C52B4 #2F6DDE

Accessibility & contrast

On white

10.82

#143A7F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.94

#143A7F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #143A7F

10.82:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##143A7F	#FFFFFF	#000000	##FFFFFF
##143A7F	1.00	10.82	1.94	10.82
#FFFFFF	10.82	1.00	21.00	1.00
#000000	1.94	21.00	1.00	21.00
##FFFFFF	10.82	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#074281

Deuteranopia (green-blind)

#00397E

Tritanopia (blue-blind)

#004B56

Achromatopsia (no color)

#3D3D3D

Design tokens & code

CSS

--color: #143a7f;
/* rgb */ color: rgb(20, 58, 127);
/* oklch */ color: oklch(36.6% 0.125 261.2);

Tailwind

colors: {
  custom: {
    50: '#656fa5',
    500: '#143a7f',
    950: '#000000',
  },
}

SCSS

$custom: #143a7f;
$custom-light: #656fa5;
$custom-dark: #000000;

JSON

{
  "hex": "#143a7f",
  "rgb": {
    "r": 20,
    "g": 58,
    "b": 127
  },
  "hsl": {
    "h": 218.692,
    "s": 72.789,
    "l": 28.824
  },
  "oklch": {
    "l": 0.36591,
    "c": 0.12477,
    "h": 261.2
  },
  "luminance": 0.04707
}

Semantic roles & 50–950 ramp

primary

#143A7F

secondary

#B4893B

accent

#AE38EF

background

#F6F6FA

surface

#EBECF4

border

#C6C7CE

text

#07070F

muted

#7A7A7F

Preview Lab

Preview with #143A7F

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

Preview Lab → · Contrast checker → · Palette generator →