#143E8C#143E8C

#143E8C is a dark, vivid blue. Relative luminance 0.055; OKLCH L 38.6% C 0.138 H 261.4°. Best body text is #FFFFFF at 10.01:1 contrast (WCAG AA passes).

Color values

HEX	#143E8C
RGB	rgb(20, 62, 140)
HSL	hsl(219, 75%, 31%)
HSV	hsv(219, 86%, 55%)
CMYK	cmyk(85.7%, 55.7%, 0%, 45.1%)
CIE-LAB	lab(28.08, 16.99, -47.30)
CIE-LCH	lch(28.08, 50.26, 289.76°)
OKLab	oklab(38.58% -0.0206 -0.1365)
OKLCH	oklch(38.58% 0.138 261.4)
XYZ	xyz(6.7430, 5.4866, 25.5095)
Luminance	0.0549 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#143E8C #8C6214

analogous

#147A8C #143E8C #26148C

triadic

#143E8C #8C143E #3E8C14

tetradic

#143E8C #8C147A #8C6214 #148C26

square

#143E8C #8C147A #8C6214 #148C26

split-complementary

#143E8C #8C2614 #7A8C14

monochromatic

#050F21 #0C2656 #143E8C #1C56C2 #3874E3

Accessibility & contrast

On white

10.01

#143E8C on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.10

#143E8C on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #143E8C

10.01:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##143E8C	#FFFFFF	#000000	##FFFFFF
##143E8C	1.00	10.01	2.10	10.01
#FFFFFF	10.01	1.00	21.00	1.00
#000000	2.10	21.00	1.00	21.00
##FFFFFF	10.01	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00488F

Deuteranopia (green-blind)

#003D8A

Tritanopia (blue-blind)

#00515E

Achromatopsia (no color)

#424242

Design tokens & code

CSS

--color: #143e8c;
/* rgb */ color: rgb(20, 62, 140);
/* oklch */ color: oklch(38.6% 0.138 261.4);

Tailwind

colors: {
  custom: {
    50: '#6972ae',
    500: '#143e8c',
    950: '#000000',
  },
}

SCSS

$custom: #143e8c;
$custom-light: #6972ae;
$custom-dark: #000000;

JSON

{
  "hex": "#143e8c",
  "rgb": {
    "r": 20,
    "g": 62,
    "b": 140
  },
  "hsl": {
    "h": 219,
    "s": 75,
    "l": 31.373
  },
  "oklch": {
    "l": 0.38582,
    "c": 0.13808,
    "h": 261.4
  },
  "luminance": 0.05487
}

Semantic roles & 50–950 ramp

primary

#143E8C

secondary

#C0923C

accent

#B036F2

background

#F6F6FA

surface

#ECECF4

border

#C7C7CE

text

#070710

muted

#7A7A7F

Preview Lab

Preview with #143E8C

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

Preview Lab → · Contrast checker → · Palette generator →