#143A7C#143A7C

#143A7C is a dark, vivid blue. Relative luminance 0.046; OKLCH L 36.3% C 0.120 H 260.6°. Best body text is #FFFFFF at 10.90:1 contrast (WCAG AA passes).

Color values

HEX	#143A7C
RGB	rgb(20, 58, 124)
HSL	hsl(218, 72%, 28%)
HSV	hsv(218, 84%, 49%)
CMYK	cmyk(83.9%, 53.2%, 0%, 51.4%)
CIE-LAB	lab(25.65, 13.14, -41.25)
CIE-LCH	lch(25.65, 43.29, 287.66°)
OKLab	oklab(36.34% -0.0196 -0.1188)
OKLCH	oklch(36.34% 0.12 260.6)
XYZ	xyz(5.4383, 4.6294, 19.6718)
Luminance	0.0463 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#143A7C #7C5614

analogous

#146E7C #143A7C #22147C

triadic

#143A7C #7C143A #3A7C14

tetradic

#143A7C #7C146E #7C5614 #147C22

square

#143A7C #7C146E #7C5614 #147C22

split-complementary

#143A7C #7C2214 #6E7C14

monochromatic

#040C1A #0B2147 #143A7C #1D53B1 #2D6EDD

Accessibility & contrast

On white

10.90

#143A7C on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.93

#143A7C on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #143A7C

10.90:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##143A7C	#FFFFFF	#000000	##FFFFFF
##143A7C	1.00	10.90	1.93	10.90
#FFFFFF	10.90	1.00	21.00	1.00
#000000	1.93	21.00	1.00	21.00
##FFFFFF	10.90	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0E427E

Deuteranopia (green-blind)

#00387B

Tritanopia (blue-blind)

#004A55

Achromatopsia (no color)

#3D3D3D

Design tokens & code

CSS

--color: #143a7c;
/* rgb */ color: rgb(20, 58, 124);
/* oklch */ color: oklch(36.3% 0.120 260.6);

Tailwind

colors: {
  custom: {
    50: '#656fa2',
    500: '#143a7c',
    950: '#000000',
  },
}

SCSS

$custom: #143a7c;
$custom-light: #656fa2;
$custom-dark: #000000;

JSON

{
  "hex": "#143a7c",
  "rgb": {
    "r": 20,
    "g": 58,
    "b": 124
  },
  "hsl": {
    "h": 218.077,
    "s": 72.222,
    "l": 28.235
  },
  "oklch": {
    "l": 0.36343,
    "c": 0.12043,
    "h": 260.6
  },
  "luminance": 0.0463
}

Semantic roles & 50–950 ramp

primary

#143A7C

secondary

#B2863A

accent

#AC39EF

background

#F6F6FA

surface

#EBECF4

border

#C6C7CE

text

#06070F

muted

#7A7A7F

Preview Lab

Preview with #143A7C

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

Preview Lab → · Contrast checker → · Palette generator →