#143E89#143E89

#143E89 is a dark, vivid blue. Relative luminance 0.054; OKLCH L 38.3% C 0.134 H 261.0°. Best body text is #FFFFFF at 10.10:1 contrast (WCAG AA passes).

Color values

HEX	#143E89
RGB	rgb(20, 62, 137)
HSL	hsl(218, 75%, 31%)
HSV	hsv(218, 85%, 54%)
CMYK	cmyk(85.4%, 54.7%, 0%, 46.3%)
CIE-LAB	lab(27.84, 15.75, -45.82)
CIE-LCH	lch(27.84, 48.45, 288.97°)
OKLab	oklab(38.33% -0.0209 -0.1322)
OKLCH	oklch(38.33% 0.134 261)
XYZ	xyz(6.5248, 5.3993, 24.3603)
Luminance	0.0540 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#143E89 #895F14

analogous

#147889 #143E89 #251489

triadic

#143E89 #89143E #3E8914

tetradic

#143E89 #891478 #895F14 #148925

square

#143E89 #891478 #895F14 #148925

split-complementary

#143E89 #892514 #788914

monochromatic

#040E1E #0C2654 #143E89 #1C56BE #3673E2

Accessibility & contrast

On white

10.10

#143E89 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.08

#143E89 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #143E89

10.10:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##143E89	#FFFFFF	#000000	##FFFFFF
##143E89	1.00	10.10	2.08	10.10
#FFFFFF	10.10	1.00	21.00	1.00
#000000	2.08	21.00	1.00	21.00
##FFFFFF	10.10	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#02478C

Deuteranopia (green-blind)

#003D88

Tritanopia (blue-blind)

#00505D

Achromatopsia (no color)

#424242

Design tokens & code

CSS

--color: #143e89;
/* rgb */ color: rgb(20, 62, 137);
/* oklch */ color: oklch(38.3% 0.134 261.0);

Tailwind

colors: {
  custom: {
    50: '#6872ac',
    500: '#143e89',
    950: '#000000',
  },
}

SCSS

$custom: #143e89;
$custom-light: #6872ac;
$custom-dark: #000000;

JSON

{
  "hex": "#143e89",
  "rgb": {
    "r": 20,
    "g": 62,
    "b": 137
  },
  "hsl": {
    "h": 218.462,
    "s": 74.522,
    "l": 30.784
  },
  "oklch": {
    "l": 0.3833,
    "c": 0.13384,
    "h": 261
  },
  "luminance": 0.054
}

Semantic roles & 50–950 ramp

primary

#143E89

secondary

#BD8F3C

accent

#AE37F1

background

#F6F6FA

surface

#ECECF4

border

#C7C7CE

text

#070710

muted

#7A7A7F

Preview Lab

Preview with #143E89

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

Preview Lab → · Contrast checker → · Palette generator →