#143F87#143F87

#143F87 is a dark, vivid blue. Relative luminance 0.055; OKLCH L 38.4% C 0.130 H 260.3°. Best body text is #FFFFFF at 10.04:1 contrast (WCAG AA passes).

Color values

HEX	#143F87
RGB	rgb(20, 63, 135)
HSL	hsl(218, 74%, 30%)
HSV	hsv(218, 85%, 53%)
CMYK	cmyk(85.2%, 53.3%, 0%, 47.1%)
CIE-LAB	lab(27.99, 14.22, -44.35)
CIE-LCH	lch(27.99, 46.57, 287.77°)
OKLab	oklab(38.39% -0.0219 -0.1278)
OKLCH	oklch(38.39% 0.13 260.3)
XYZ	xyz(6.4376, 5.4522, 23.6301)
Luminance	0.0545 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#143F87 #875C14

analogous

#147987 #143F87 #221487

triadic

#143F87 #87143F #3F8714

tetradic

#143F87 #871479 #875C14 #148722

square

#143F87 #871479 #875C14 #148722

split-complementary

#143F87 #872214 #798714

monochromatic

#040D1C #0C2652 #143F87 #1C58BC #3475E1

Accessibility & contrast

On white

10.04

#143F87 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.09

#143F87 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #143F87

10.04:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##143F87	#FFFFFF	#000000	##FFFFFF
##143F87	1.00	10.04	2.09	10.04
#FFFFFF	10.04	1.00	21.00	1.00
#000000	2.09	21.00	1.00	21.00
##FFFFFF	10.04	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0C488A

Deuteranopia (green-blind)

#003D86

Tritanopia (blue-blind)

#00515C

Achromatopsia (no color)

#424242

Design tokens & code

CSS

--color: #143f87;
/* rgb */ color: rgb(20, 63, 135);
/* oklch */ color: oklch(38.4% 0.130 260.3);

Tailwind

colors: {
  custom: {
    50: '#6773aa',
    500: '#143f87',
    950: '#000000',
  },
}

SCSS

$custom: #143f87;
$custom-light: #6773aa;
$custom-dark: #000000;

JSON

{
  "hex": "#143f87",
  "rgb": {
    "r": 20,
    "g": 63,
    "b": 135
  },
  "hsl": {
    "h": 217.565,
    "s": 74.194,
    "l": 30.392
  },
  "oklch": {
    "l": 0.3839,
    "c": 0.12971,
    "h": 260.3
  },
  "luminance": 0.05453
}

Semantic roles & 50–950 ramp

primary

#143F87

secondary

#BB8C3B

accent

#AB37F1

background

#F6F6FA

surface

#ECECF4

border

#C7C7CE

text

#070810

muted

#7A7B7F

Preview Lab

Preview with #143F87

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

Preview Lab → · Contrast checker → · Palette generator →