#143C7F#143C7F

#143C7F is a dark, vivid blue. Relative luminance 0.049; OKLCH L 37.0% C 0.122 H 260.2°. Best body text is #FFFFFF at 10.59:1 contrast (WCAG AA passes).

Color values

HEX	#143C7F
RGB	rgb(20, 60, 127)
HSL	hsl(218, 73%, 29%)
HSV	hsv(218, 84%, 50%)
CMYK	cmyk(84.3%, 52.8%, 0%, 50.2%)
CIE-LAB	lab(26.48, 12.98, -41.79)
CIE-LCH	lch(26.48, 43.76, 287.25°)
OKLab	oklab(37.05% -0.0207 -0.1204)
OKLCH	oklch(37.05% 0.122 260.2)
XYZ	xyz(5.7337, 4.9121, 20.7205)
Luminance	0.0491 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#143C7F #7F5714

analogous

#14727F #143C7F #22147F

triadic

#143C7F #7F143C #3C7F14

tetradic

#143C7F #7F1472 #7F5714 #147F22

square

#143C7F #7F1472 #7F5714 #147F22

split-complementary

#143C7F #7F2214 #727F14

monochromatic

#040C1A #0C234A #143C7F #1C55B4 #2F71DE

Accessibility & contrast

On white

10.59

#143C7F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.98

#143C7F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #143C7F

10.59:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##143C7F	#FFFFFF	#000000	##FFFFFF
##143C7F	1.00	10.59	1.98	10.59
#FFFFFF	10.59	1.00	21.00	1.00
#000000	1.98	21.00	1.00	21.00
##FFFFFF	10.59	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#104481

Deuteranopia (green-blind)

#003A7E

Tritanopia (blue-blind)

#004C57

Achromatopsia (no color)

#3F3F3F

Design tokens & code

CSS

--color: #143c7f;
/* rgb */ color: rgb(20, 60, 127);
/* oklch */ color: oklch(37.0% 0.122 260.2);

Tailwind

colors: {
  custom: {
    50: '#6571a5',
    500: '#143c7f',
    950: '#000000',
  },
}

SCSS

$custom: #143c7f;
$custom-light: #6571a5;
$custom-dark: #000000;

JSON

{
  "hex": "#143c7f",
  "rgb": {
    "r": 20,
    "g": 60,
    "b": 127
  },
  "hsl": {
    "h": 217.57,
    "s": 72.789,
    "l": 28.824
  },
  "oklch": {
    "l": 0.3705,
    "c": 0.12215,
    "h": 260.2
  },
  "luminance": 0.04913
}

Semantic roles & 50–950 ramp

primary

#143C7F

secondary

#B4873B

accent

#AB38EF

background

#F6F6FA

surface

#EBECF4

border

#C6C7CE

text

#07070F

muted

#7A7A7F

Preview Lab

Preview with #143C7F

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

Preview Lab → · Contrast checker → · Palette generator →