#143C7D#143C7D

#143C7D is a dark, moderate blue. Relative luminance 0.049; OKLCH L 36.9% C 0.119 H 259.9°. Best body text is #FFFFFF at 10.65:1 contrast (WCAG AA passes).

Color values

HEX	#143C7D
RGB	rgb(20, 60, 125)
HSL	hsl(217, 72%, 28%)
HSV	hsv(217, 84%, 49%)
CMYK	cmyk(84%, 52%, 0%, 51%)
CIE-LAB	lab(26.33, 12.14, -40.78)
CIE-LCH	lch(26.33, 42.55, 286.58°)
OKLab	oklab(36.89% -0.021 -0.1174)
OKLCH	oklch(36.89% 0.119 259.9)
XYZ	xyz(5.6047, 4.8604, 20.0408)
Luminance	0.0486 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#143C7D #7D5514

analogous

#14707D #143C7D #20147D

triadic

#143C7D #7D143C #3C7D14

tetradic

#143C7D #7D1470 #7D5514 #147D20

square

#143C7D #7D1470 #7D5514 #147D20

split-complementary

#143C7D #7D2014 #707D14

monochromatic

#040D1A #0C2348 #143C7D #1C55B2 #2E71DE

Accessibility & contrast

On white

10.65

#143C7D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.97

#143C7D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #143C7D

10.65:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##143C7D	#FFFFFF	#000000	##FFFFFF
##143C7D	1.00	10.65	1.97	10.65
#FFFFFF	10.65	1.00	21.00	1.00
#000000	1.97	21.00	1.00	21.00
##FFFFFF	10.65	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#13437F

Deuteranopia (green-blind)

#003A7C

Tritanopia (blue-blind)

#004C56

Achromatopsia (no color)

#3E3E3E

Design tokens & code

CSS

--color: #143c7d;
/* rgb */ color: rgb(20, 60, 125);
/* oklch */ color: oklch(36.9% 0.119 259.9);

Tailwind

colors: {
  custom: {
    50: '#6571a3',
    500: '#143c7d',
    950: '#000000',
  },
}

SCSS

$custom: #143c7d;
$custom-light: #6571a3;
$custom-dark: #000000;

JSON

{
  "hex": "#143c7d",
  "rgb": {
    "r": 20,
    "g": 60,
    "b": 125
  },
  "hsl": {
    "h": 217.143,
    "s": 72.414,
    "l": 28.431
  },
  "oklch": {
    "l": 0.36888,
    "c": 0.11926,
    "h": 259.9
  },
  "luminance": 0.04861
}

Semantic roles & 50–950 ramp

primary

#143C7D

secondary

#B2853A

accent

#AA39EF

background

#F6F6FA

surface

#EBECF4

border

#C6C7CE

text

#06070F

muted

#7A7A7F

Preview Lab

Preview with #143C7D

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

Preview Lab → · Contrast checker → · Palette generator →