#143D9F#143D9F

#143D9F is a dark, vivid blue. Relative luminance 0.060; OKLCH L 40.1% C 0.165 H 263.5°. Best body text is #FFFFFF at 9.56:1 contrast (WCAG AA passes).

Color values

HEX	#143D9F
RGB	rgb(20, 61, 159)
HSL	hsl(222, 78%, 35%)
HSV	hsv(222, 87%, 62%)
CMYK	cmyk(87.4%, 61.6%, 0%, 37.6%)
CIE-LAB	lab(29.38, 25.43, -56.79)
CIE-LCH	lch(29.38, 62.23, 294.12°)
OKLab	oklab(40.06% -0.0188 -0.1644)
OKLCH	oklch(40.06% 0.165 263.5)
XYZ	xyz(8.2130, 5.9884, 33.5172)
Luminance	0.0599 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#143D9F #9F7614

analogous

#14839F #143D9F #30149F

triadic

#143D9F #9F143D #3D9F14

tetradic

#143D9F #9F1483 #9F7614 #149F30

square

#143D9F #9F1483 #9F7614 #149F30

split-complementary

#143D9F #9F3014 #839F14

monochromatic

#061332 #0D2869 #143D9F #1B52D5 #4675E8

Accessibility & contrast

On white

9.56

#143D9F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.20

#143D9F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #143D9F

9.56:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##143D9F	#FFFFFF	#000000	##FFFFFF
##143D9F	1.00	9.56	2.20	9.56
#FFFFFF	9.56	1.00	21.00	1.00
#000000	2.20	21.00	1.00	21.00
##FFFFFF	9.56	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004CA2

Deuteranopia (green-blind)

#003F9D

Tritanopia (blue-blind)

#005668

Achromatopsia (no color)

#454545

Design tokens & code

CSS

--color: #143d9f;
/* rgb */ color: rgb(20, 61, 159);
/* oklch */ color: oklch(40.1% 0.165 263.5);

Tailwind

colors: {
  custom: {
    50: '#6e72bc',
    500: '#143d9f',
    950: '#000000',
  },
}

SCSS

$custom: #143d9f;
$custom-light: #6e72bc;
$custom-dark: #000000;

JSON

{
  "hex": "#143d9f",
  "rgb": {
    "r": 20,
    "g": 61,
    "b": 159
  },
  "hsl": {
    "h": 222.302,
    "s": 77.654,
    "l": 35.098
  },
  "oklch": {
    "l": 0.40059,
    "c": 0.16549,
    "h": 263.5
  },
  "luminance": 0.05989
}

Semantic roles & 50–950 ramp

primary

#143D9F

secondary

#C8A246

accent

#BB34F4

background

#F7F6FB

surface

#EDECF6

border

#C8C7D0

text

#090712

muted

#7B7A81

Preview Lab

Preview with #143D9F

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

Preview Lab → · Contrast checker → · Palette generator →