#143F7E#143F7E

#143F7E is a dark, moderate blue. Relative luminance 0.052; OKLCH L 37.7% C 0.117 H 258.5°. Best body text is #FFFFFF at 10.28:1 contrast (WCAG AA passes).

Color values

HEX	#143F7E
RGB	rgb(20, 63, 126)
HSL	hsl(216, 73%, 29%)
HSV	hsv(216, 84%, 49%)
CMYK	cmyk(84.1%, 50%, 0%, 50.6%)
CIE-LAB	lab(27.32, 10.46, -39.81)
CIE-LCH	lch(27.32, 41.16, 284.72°)
OKLab	oklab(37.67% -0.0233 -0.1145)
OKLCH	oklch(37.67% 0.117 258.5)
XYZ	xyz(5.8305, 5.2094, 20.4328)
Luminance	0.0521 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#143F7E #7E5314

analogous

#14747E #143F7E #1E147E

triadic

#143F7E #7E143F #3F7E14

tetradic

#143F7E #7E1474 #7E5314 #147E1E

square

#143F7E #7E1474 #7E5314 #147E1E

split-complementary

#143F7E #7E1E14 #747E14

monochromatic

#040D1A #0C2549 #143F7E #1C59B3 #2E76DE

Accessibility & contrast

On white

10.28

#143F7E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.04

#143F7E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #143F7E

10.28:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##143F7E	#FFFFFF	#000000	##FFFFFF
##143F7E	1.00	10.28	2.04	10.28
#FFFFFF	10.28	1.00	21.00	1.00
#000000	2.04	21.00	1.00	21.00
##FFFFFF	10.28	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1B4680

Deuteranopia (green-blind)

#003C7D

Tritanopia (blue-blind)

#004E58

Achromatopsia (no color)

#414141

Design tokens & code

CSS

--color: #143f7e;
/* rgb */ color: rgb(20, 63, 126);
/* oklch */ color: oklch(37.7% 0.117 258.5);

Tailwind

colors: {
  custom: {
    50: '#6573a4',
    500: '#143f7e',
    950: '#000000',
  },
}

SCSS

$custom: #143f7e;
$custom-light: #6573a4;
$custom-dark: #000000;

JSON

{
  "hex": "#143f7e",
  "rgb": {
    "r": 20,
    "g": 63,
    "b": 126
  },
  "hsl": {
    "h": 215.66,
    "s": 72.603,
    "l": 28.627
  },
  "oklch": {
    "l": 0.37671,
    "c": 0.11682,
    "h": 258.5
  },
  "luminance": 0.0521
}

Semantic roles & 50–950 ramp

primary

#143F7E

secondary

#B3823A

accent

#A538EF

background

#F6F6FA

surface

#EBECF4

border

#C6C7CE

text

#06080F

muted

#7A7B7F

Preview Lab

Preview with #143F7E

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

Preview Lab → · Contrast checker → · Palette generator →