#143F89#143F89

#143F89 is a dark, vivid blue. Relative luminance 0.055; OKLCH L 38.6% C 0.133 H 260.6°. Best body text is #FFFFFF at 9.99:1 contrast (WCAG AA passes).

Color values

HEX	#143F89
RGB	rgb(20, 63, 137)
HSL	hsl(218, 75%, 31%)
HSV	hsv(218, 85%, 54%)
CMYK	cmyk(85.4%, 54%, 0%, 46.3%)
CIE-LAB	lab(28.14, 15.05, -45.34)
CIE-LCH	lch(28.14, 47.78, 288.36°)
OKLab	oklab(38.55% -0.0217 -0.1308)
OKLCH	oklch(38.55% 0.133 260.6)
XYZ	xyz(6.5797, 5.5091, 24.3786)
Luminance	0.0551 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#143F89 #895E14

analogous

#147989 #143F89 #241489

triadic

#143F89 #89143F #3F8914

tetradic

#143F89 #891479 #895E14 #148924

square

#143F89 #891479 #895E14 #148924

split-complementary

#143F89 #892414 #798914

monochromatic

#040E1E #0C2654 #143F89 #1C58BE #3675E2

Accessibility & contrast

On white

9.99

#143F89 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.10

#143F89 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #143F89

9.99:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##143F89	#FFFFFF	#000000	##FFFFFF
##143F89	1.00	9.99	2.10	9.99
#FFFFFF	9.99	1.00	21.00	1.00
#000000	2.10	21.00	1.00	21.00
##FFFFFF	9.99	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#07488C

Deuteranopia (green-blind)

#003D88

Tritanopia (blue-blind)

#00515D

Achromatopsia (no color)

#424242

Design tokens & code

CSS

--color: #143f89;
/* rgb */ color: rgb(20, 63, 137);
/* oklch */ color: oklch(38.6% 0.133 260.6);

Tailwind

colors: {
  custom: {
    50: '#6873ac',
    500: '#143f89',
    950: '#000000',
  },
}

SCSS

$custom: #143f89;
$custom-light: #6873ac;
$custom-dark: #000000;

JSON

{
  "hex": "#143f89",
  "rgb": {
    "r": 20,
    "g": 63,
    "b": 137
  },
  "hsl": {
    "h": 217.949,
    "s": 74.522,
    "l": 30.784
  },
  "oklch": {
    "l": 0.38554,
    "c": 0.13254,
    "h": 260.6
  },
  "luminance": 0.0551
}

Semantic roles & 50–950 ramp

primary

#143F89

secondary

#BD8E3C

accent

#AD37F1

background

#F6F6FA

surface

#ECECF4

border

#C7C7CE

text

#070810

muted

#7A7B7F

Preview Lab

Preview with #143F89

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

Preview Lab → · Contrast checker → · Palette generator →