#143171#143171

#143171 is a dark, moderate blue. Relative luminance 0.035; OKLCH L 33.4% C 0.116 H 263.2°. Best body text is #FFFFFF at 12.30:1 contrast (WCAG AA passes).

Color values

HEX	#143171
RGB	rgb(20, 49, 113)
HSL	hsl(221, 70%, 26%)
HSV	hsv(221, 82%, 44%)
CMYK	cmyk(82.3%, 56.6%, 0%, 55.7%)
CIE-LAB	lab(22.08, 14.94, -40.05)
CIE-LCH	lch(22.08, 42.74, 290.46°)
OKLab	oklab(33.35% -0.0138 -0.1155)
OKLCH	oklch(33.35% 0.116 263.2)
XYZ	xyz(4.3664, 3.5371, 16.0722)
Luminance	0.0354 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#143171 #715414

analogous

#145F71 #143171 #251471

triadic

#143171 #711431 #317114

tetradic

#143171 #71145F #715414 #147125

square

#143171 #71145F #715414 #147125

split-complementary

#143171 #712514 #5F7114

monochromatic

#050B1A #0B1A3D #143171 #1D48A5 #275ED9

Accessibility & contrast

On white

12.30

#143171 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.71

#143171 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #143171

12.30:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##143171	#FFFFFF	#000000	##FFFFFF
##143171	1.00	12.30	1.71	12.30
#FFFFFF	12.30	1.00	21.00	1.00
#000000	1.71	21.00	1.00	21.00
##FFFFFF	12.30	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003973

Deuteranopia (green-blind)

#003170

Tritanopia (blue-blind)

#00414C

Achromatopsia (no color)

#353535

Design tokens & code

CSS

--color: #143171;
/* rgb */ color: rgb(20, 49, 113);
/* oklch */ color: oklch(33.4% 0.116 263.2);

Tailwind

colors: {
  custom: {
    50: '#62689a',
    500: '#143171',
    950: '#000000',
  },
}

SCSS

$custom: #143171;
$custom-light: #62689a;
$custom-dark: #000000;

JSON

{
  "hex": "#143171",
  "rgb": {
    "r": 20,
    "g": 49,
    "b": 113
  },
  "hsl": {
    "h": 221.29,
    "s": 69.925,
    "l": 26.078
  },
  "oklch": {
    "l": 0.33352,
    "c": 0.1163,
    "h": 263.2
  },
  "luminance": 0.03538
}

Semantic roles & 50–950 ramp

primary

#143171

secondary

#A78539

accent

#B53BED

background

#F6F6F9

surface

#EBEBF2

border

#C6C6CC

text

#06060E

muted

#7A7A7E

Preview Lab

Preview with #143171

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

Preview Lab → · Contrast checker → · Palette generator →