#143A7E#143A7E

#143A7E is a dark, vivid blue. Relative luminance 0.047; OKLCH L 36.5% C 0.123 H 261.0°. Best body text is #FFFFFF at 10.85:1 contrast (WCAG AA passes).

Color values

HEX	#143A7E
RGB	rgb(20, 58, 126)
HSL	hsl(218, 73%, 29%)
HSV	hsv(218, 84%, 49%)
CMYK	cmyk(84.1%, 54%, 0%, 50.6%)
CIE-LAB	lab(25.80, 13.97, -42.26)
CIE-LCH	lch(25.80, 44.51, 288.30°)
OKLab	oklab(36.51% -0.0193 -0.1218)
OKLCH	oklch(36.51% 0.123 261)
XYZ	xyz(5.5661, 4.6805, 20.3447)
Luminance	0.0468 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#143A7E #7E5814

analogous

#146F7E #143A7E #23147E

triadic

#143A7E #7E143A #3A7E14

tetradic

#143A7E #7E146F #7E5814 #147E23

square

#143A7E #7E146F #7E5814 #147E23

split-complementary

#143A7E #7E2314 #6F7E14

monochromatic

#040C1A #0C2249 #143A7E #1C52B3 #2E6DDE

Accessibility & contrast

On white

10.85

#143A7E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.94

#143A7E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #143A7E

10.85:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##143A7E	#FFFFFF	#000000	##FFFFFF
##143A7E	1.00	10.85	1.94	10.85
#FFFFFF	10.85	1.00	21.00	1.00
#000000	1.94	21.00	1.00	21.00
##FFFFFF	10.85	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#094280

Deuteranopia (green-blind)

#00397D

Tritanopia (blue-blind)

#004B56

Achromatopsia (no color)

#3D3D3D

Design tokens & code

CSS

--color: #143a7e;
/* rgb */ color: rgb(20, 58, 126);
/* oklch */ color: oklch(36.5% 0.123 261.0);

Tailwind

colors: {
  custom: {
    50: '#656fa4',
    500: '#143a7e',
    950: '#000000',
  },
}

SCSS

$custom: #143a7e;
$custom-light: #656fa4;
$custom-dark: #000000;

JSON

{
  "hex": "#143a7e",
  "rgb": {
    "r": 20,
    "g": 58,
    "b": 126
  },
  "hsl": {
    "h": 218.491,
    "s": 72.603,
    "l": 28.627
  },
  "oklch": {
    "l": 0.36508,
    "c": 0.12332,
    "h": 261
  },
  "luminance": 0.04681
}

Semantic roles & 50–950 ramp

primary

#143A7E

secondary

#B3883A

accent

#AE38EF

background

#F6F6FA

surface

#EBECF4

border

#C6C7CE

text

#07070F

muted

#7A7A7F

Preview Lab

Preview with #143A7E

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

Preview Lab → · Contrast checker → · Palette generator →