#143C8D#143C8D

#143C8D is a dark, vivid blue. Relative luminance 0.053; OKLCH L 38.2% C 0.142 H 262.2°. Best body text is #FFFFFF at 10.19:1 contrast (WCAG AA passes).

Color values

HEX	#143C8D
RGB	rgb(20, 60, 141)
HSL	hsl(220, 75%, 32%)
HSV	hsv(220, 86%, 55%)
CMYK	cmyk(85.8%, 57.4%, 0%, 44.7%)
CIE-LAB	lab(27.58, 18.80, -48.72)
CIE-LCH	lch(27.58, 52.23, 291.10°)
OKLab	oklab(38.23% -0.0192 -0.1408)
OKLCH	oklch(38.23% 0.142 262.2)
XYZ	xyz(6.7103, 5.3027, 25.8640)
Luminance	0.0530 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#143C8D #8D6514

analogous

#14798D #143C8D #29148D

triadic

#143C8D #8D143C #3C8D14

tetradic

#143C8D #8D1479 #8D6514 #148D29

square

#143C8D #8D1479 #8D6514 #148D29

split-complementary

#143C8D #8D2914 #798D14

monochromatic

#050E22 #0C2557 #143C8D #1C53C3 #3971E3

Accessibility & contrast

On white

10.19

#143C8D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.06

#143C8D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #143C8D

10.19:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##143C8D	#FFFFFF	#000000	##FFFFFF
##143C8D	1.00	10.19	2.06	10.19
#FFFFFF	10.19	1.00	21.00	1.00
#000000	2.06	21.00	1.00	21.00
##FFFFFF	10.19	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004790

Deuteranopia (green-blind)

#003C8B

Tritanopia (blue-blind)

#00505E

Achromatopsia (no color)

#414141

Design tokens & code

CSS

--color: #143c8d;
/* rgb */ color: rgb(20, 60, 141);
/* oklch */ color: oklch(38.2% 0.142 262.2);

Tailwind

colors: {
  custom: {
    50: '#6971af',
    500: '#143c8d',
    950: '#000000',
  },
}

SCSS

$custom: #143c8d;
$custom-light: #6971af;
$custom-dark: #000000;

JSON

{
  "hex": "#143c8d",
  "rgb": {
    "r": 20,
    "g": 60,
    "b": 141
  },
  "hsl": {
    "h": 220.165,
    "s": 75.155,
    "l": 31.569
  },
  "oklch": {
    "l": 0.3823,
    "c": 0.14206,
    "h": 262.2
  },
  "luminance": 0.05304
}

Semantic roles & 50–950 ramp

primary

#143C8D

secondary

#C1953C

accent

#B436F2

background

#F6F6FA

surface

#ECECF5

border

#C7C7CF

text

#070710

muted

#7A7A7F

Preview Lab

Preview with #143C8D

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

Preview Lab → · Contrast checker → · Palette generator →