#143D7F#143D7F

#143D7F is a dark, vivid blue. Relative luminance 0.050; OKLCH L 37.3% C 0.121 H 259.7°. Best body text is #FFFFFF at 10.48:1 contrast (WCAG AA passes).

Color values

HEX	#143D7F
RGB	rgb(20, 61, 127)
HSL	hsl(217, 73%, 29%)
HSV	hsv(217, 84%, 50%)
CMYK	cmyk(84.3%, 52%, 0%, 50.2%)
CIE-LAB	lab(26.79, 12.28, -41.30)
CIE-LCH	lch(26.79, 43.09, 286.55°)
OKLab	oklab(37.28% -0.0215 -0.1189)
OKLCH	oklch(37.28% 0.121 259.7)
XYZ	xyz(5.7866, 5.0178, 20.7381)
Luminance	0.0502 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#143D7F #7F5614

analogous

#14737F #143D7F #20147F

triadic

#143D7F #7F143D #3D7F14

tetradic

#143D7F #7F1473 #7F5614 #147F20

square

#143D7F #7F1473 #7F5614 #147F20

split-complementary

#143D7F #7F2014 #737F14

monochromatic

#040D1A #0C244A #143D7F #1C56B4 #2F72DE

Accessibility & contrast

On white

10.48

#143D7F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.00

#143D7F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #143D7F

10.48:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##143D7F	#FFFFFF	#000000	##FFFFFF
##143D7F	1.00	10.48	2.00	10.48
#FFFFFF	10.48	1.00	21.00	1.00
#000000	2.00	21.00	1.00	21.00
##FFFFFF	10.48	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#134481

Deuteranopia (green-blind)

#003B7E

Tritanopia (blue-blind)

#004D58

Achromatopsia (no color)

#3F3F3F

Design tokens & code

CSS

--color: #143d7f;
/* rgb */ color: rgb(20, 61, 127);
/* oklch */ color: oklch(37.3% 0.121 259.7);

Tailwind

colors: {
  custom: {
    50: '#6571a5',
    500: '#143d7f',
    950: '#000000',
  },
}

SCSS

$custom: #143d7f;
$custom-light: #6571a5;
$custom-dark: #000000;

JSON

{
  "hex": "#143d7f",
  "rgb": {
    "r": 20,
    "g": 61,
    "b": 127
  },
  "hsl": {
    "h": 217.009,
    "s": 72.789,
    "l": 28.824
  },
  "oklch": {
    "l": 0.37281,
    "c": 0.12085,
    "h": 259.7
  },
  "luminance": 0.05019
}

Semantic roles & 50–950 ramp

primary

#143D7F

secondary

#B4863B

accent

#A938EF

background

#F6F6FA

surface

#EBECF4

border

#C6C7CE

text

#07070F

muted

#7A7A7F

Preview Lab

Preview with #143D7F

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

Preview Lab → · Contrast checker → · Palette generator →