#143B89#143B89

#143B89 is a dark, vivid blue. Relative luminance 0.051; OKLCH L 37.7% C 0.138 H 262.1°. Best body text is #FFFFFF at 10.41:1 contrast (WCAG AA passes).

Color values

HEX	#143B89
RGB	rgb(20, 59, 137)
HSL	hsl(220, 75%, 31%)
HSV	hsv(220, 85%, 54%)
CMYK	cmyk(85.4%, 56.9%, 0%, 46.3%)
CIE-LAB	lab(26.97, 17.85, -47.25)
CIE-LCH	lch(26.97, 50.51, 290.70°)
OKLab	oklab(37.67% -0.0189 -0.1364)
OKLCH	oklch(37.67% 0.138 262.1)
XYZ	xyz(6.3662, 5.0820, 24.3075)
Luminance	0.0508 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#143B89 #896214

analogous

#147589 #143B89 #271489

triadic

#143B89 #89143B #3B8914

tetradic

#143B89 #891475 #896214 #148927

square

#143B89 #891475 #896214 #148927

split-complementary

#143B89 #892714 #758914

monochromatic

#040D1E #0C2454 #143B89 #1C52BE #366FE2

Accessibility & contrast

On white

10.41

#143B89 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.02

#143B89 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #143B89

10.41:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##143B89	#FFFFFF	#000000	##FFFFFF
##143B89	1.00	10.41	2.02	10.41
#FFFFFF	10.41	1.00	21.00	1.00
#000000	2.02	21.00	1.00	21.00
##FFFFFF	10.41	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00458C

Deuteranopia (green-blind)

#003B87

Tritanopia (blue-blind)

#004E5C

Achromatopsia (no color)

#404040

Design tokens & code

CSS

--color: #143b89;
/* rgb */ color: rgb(20, 59, 137);
/* oklch */ color: oklch(37.7% 0.138 262.1);

Tailwind

colors: {
  custom: {
    50: '#6870ac',
    500: '#143b89',
    950: '#000000',
  },
}

SCSS

$custom: #143b89;
$custom-light: #6870ac;
$custom-dark: #000000;

JSON

{
  "hex": "#143b89",
  "rgb": {
    "r": 20,
    "g": 59,
    "b": 137
  },
  "hsl": {
    "h": 220,
    "s": 74.522,
    "l": 30.784
  },
  "oklch": {
    "l": 0.37665,
    "c": 0.13774,
    "h": 262.1
  },
  "luminance": 0.05083
}

Semantic roles & 50–950 ramp

primary

#143B89

secondary

#BD923C

accent

#B337F1

background

#F6F6FA

surface

#ECECF4

border

#C7C7CE

text

#070710

muted

#7A7A7F

Preview Lab

Preview with #143B89

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

Preview Lab → · Contrast checker → · Palette generator →