#143C74#143C74

#143C74 is a dark, moderate blue. Relative luminance 0.046; OKLCH L 36.2% C 0.106 H 257.7°. Best body text is #FFFFFF at 10.89:1 contrast (WCAG AA passes).

Color values

HEX	#143C74
RGB	rgb(20, 60, 116)
HSL	hsl(215, 71%, 27%)
HSV	hsv(215, 83%, 45%)
CMYK	cmyk(82.8%, 48.3%, 0%, 54.5%)
CIE-LAB	lab(25.69, 8.36, -36.14)
CIE-LCH	lch(25.69, 37.09, 283.02°)
OKLab	oklab(36.18% -0.0225 -0.1037)
OKLCH	oklch(36.18% 0.106 257.7)
XYZ	xyz(5.0556, 4.6408, 17.1489)
Luminance	0.0464 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#143C74 #744C14

analogous

#146C74 #143C74 #1C1474

triadic

#143C74 #74143C #3C7414

tetradic

#143C74 #74146C #744C14 #14741C

square

#143C74 #74146C #744C14 #14741C

split-complementary

#143C74 #741C14 #6C7414

monochromatic

#050E1A #0B2140 #143C74 #1D57A8 #2872DA

Accessibility & contrast

On white

10.89

#143C74 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.93

#143C74 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #143C74

10.89:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##143C74	#FFFFFF	#000000	##FFFFFF
##143C74	1.00	10.89	1.93	10.89
#FFFFFF	10.89	1.00	21.00	1.00
#000000	1.93	21.00	1.00	21.00
##FFFFFF	10.89	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1E4176

Deuteranopia (green-blind)

#053973

Tritanopia (blue-blind)

#004952

Achromatopsia (no color)

#3D3D3D

Design tokens & code

CSS

--color: #143c74;
/* rgb */ color: rgb(20, 60, 116);
/* oklch */ color: oklch(36.2% 0.106 257.7);

Tailwind

colors: {
  custom: {
    50: '#62719c',
    500: '#143c74',
    950: '#000000',
  },
}

SCSS

$custom: #143c74;
$custom-light: #62719c;
$custom-dark: #000000;

JSON

{
  "hex": "#143c74",
  "rgb": {
    "r": 20,
    "g": 60,
    "b": 116
  },
  "hsl": {
    "h": 215,
    "s": 70.588,
    "l": 26.667
  },
  "oklch": {
    "l": 0.36183,
    "c": 0.10615,
    "h": 257.7
  },
  "luminance": 0.04641
}

Semantic roles & 50–950 ramp

primary

#143C74

secondary

#AA7B3A

accent

#A33AED

background

#F6F6F9

surface

#EBECF2

border

#C6C7CC

text

#06070E

muted

#7A7A7E

Preview Lab

Preview with #143C74

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

Preview Lab → · Contrast checker → · Palette generator →