#143C7A#143C7A

#143C7A is a dark, moderate blue. Relative luminance 0.048; OKLCH L 36.6% C 0.115 H 259.2°. Best body text is #FFFFFF at 10.73:1 contrast (WCAG AA passes).

Color values

HEX	#143C7A
RGB	rgb(20, 60, 122)
HSL	hsl(216, 72%, 28%)
HSV	hsv(216, 84%, 48%)
CMYK	cmyk(83.6%, 50.8%, 0%, 52.2%)
CIE-LAB	lab(26.11, 10.88, -39.25)
CIE-LCH	lch(26.11, 40.73, 285.50°)
OKLab	oklab(36.65% -0.0215 -0.1129)
OKLCH	oklch(36.65% 0.115 259.2)
XYZ	xyz(5.4159, 4.7849, 19.0467)
Luminance	0.0479 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#143C7A #7A5214

analogous

#146F7A #143C7A #1F147A

triadic

#143C7A #7A143C #3C7A14

tetradic

#143C7A #7A146F #7A5214 #147A1F

square

#143C7A #7A146F #7A5214 #147A1F

split-complementary

#143C7A #7A1F14 #6F7A14

monochromatic

#040D1A #0B2245 #143C7A #1D56AF #2C71DC

Accessibility & contrast

On white

10.73

#143C7A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.96

#143C7A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #143C7A

10.73:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##143C7A	#FFFFFF	#000000	##FFFFFF
##143C7A	1.00	10.73	1.96	10.73
#FFFFFF	10.73	1.00	21.00	1.00
#000000	1.96	21.00	1.00	21.00
##FFFFFF	10.73	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#17437C

Deuteranopia (green-blind)

#003979

Tritanopia (blue-blind)

#004B55

Achromatopsia (no color)

#3E3E3E

Design tokens & code

CSS

--color: #143c7a;
/* rgb */ color: rgb(20, 60, 122);
/* oklch */ color: oklch(36.6% 0.115 259.2);

Tailwind

colors: {
  custom: {
    50: '#6471a1',
    500: '#143c7a',
    950: '#000000',
  },
}

SCSS

$custom: #143c7a;
$custom-light: #6471a1;
$custom-dark: #000000;

JSON

{
  "hex": "#143c7a",
  "rgb": {
    "r": 20,
    "g": 60,
    "b": 122
  },
  "hsl": {
    "h": 216.471,
    "s": 71.831,
    "l": 27.843
  },
  "oklch": {
    "l": 0.36649,
    "c": 0.11491,
    "h": 259.2
  },
  "luminance": 0.04786
}

Semantic roles & 50–950 ramp

primary

#143C7A

secondary

#B0823A

accent

#A739EF

background

#F6F6F9

surface

#EBECF2

border

#C6C7CC

text

#06070F

muted

#7A7A7E

Preview Lab

Preview with #143C7A

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

Preview Lab → · Contrast checker → · Palette generator →