#143989#143989

#143989 is a dark, vivid blue. Relative luminance 0.049; OKLCH L 37.2% C 0.140 H 262.8°. Best body text is #FFFFFF at 10.63:1 contrast (WCAG AA passes).

Color values

HEX	#143989
RGB	rgb(20, 57, 137)
HSL	hsl(221, 75%, 31%)
HSV	hsv(221, 85%, 54%)
CMYK	cmyk(85.4%, 58.4%, 0%, 46.3%)
CIE-LAB	lab(26.39, 19.26, -48.18)
CIE-LCH	lch(26.39, 51.89, 291.79°)
OKLab	oklab(37.23% -0.0175 -0.1392)
OKLCH	oklch(37.23% 0.14 262.8)
XYZ	xyz(6.2654, 4.8804, 24.2738)
Luminance	0.0488 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#143989 #896414

analogous

#147389 #143989 #2A1489

triadic

#143989 #891439 #398914

tetradic

#143989 #891473 #896414 #14892A

square

#143989 #891473 #896414 #14892A

split-complementary

#143989 #892A14 #738914

monochromatic

#040D1E #0C2354 #143989 #1C4FBE #366CE2

Accessibility & contrast

On white

10.63

#143989 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.98

#143989 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #143989

10.63:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##143989	#FFFFFF	#000000	##FFFFFF
##143989	1.00	10.63	1.98	10.63
#FFFFFF	10.63	1.00	21.00	1.00
#000000	1.98	21.00	1.00	21.00
##FFFFFF	10.63	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00448C

Deuteranopia (green-blind)

#003987

Tritanopia (blue-blind)

#004D5B

Achromatopsia (no color)

#3E3E3E

Design tokens & code

CSS

--color: #143989;
/* rgb */ color: rgb(20, 57, 137);
/* oklch */ color: oklch(37.2% 0.140 262.8);

Tailwind

colors: {
  custom: {
    50: '#686eac',
    500: '#143989',
    950: '#000000',
  },
}

SCSS

$custom: #143989;
$custom-light: #686eac;
$custom-dark: #000000;

JSON

{
  "hex": "#143989",
  "rgb": {
    "r": 20,
    "g": 57,
    "b": 137
  },
  "hsl": {
    "h": 221.026,
    "s": 74.522,
    "l": 30.784
  },
  "oklch": {
    "l": 0.3723,
    "c": 0.14033,
    "h": 262.8
  },
  "luminance": 0.04881
}

Semantic roles & 50–950 ramp

primary

#143989

secondary

#BD943C

accent

#B637F1

background

#F6F6FA

surface

#ECEBF4

border

#C7C6CE

text

#070710

muted

#7A7A7F

Preview Lab

Preview with #143989

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

Preview Lab → · Contrast checker → · Palette generator →