#143B7F#143B7F

#143B7F is a dark, vivid blue. Relative luminance 0.048; OKLCH L 36.8% C 0.123 H 260.7°. Best body text is #FFFFFF at 10.70:1 contrast (WCAG AA passes).

Color values

HEX	#143B7F
RGB	rgb(20, 59, 127)
HSL	hsl(218, 73%, 29%)
HSV	hsv(218, 84%, 50%)
CMYK	cmyk(84.3%, 53.5%, 0%, 50.2%)
CIE-LAB	lab(26.18, 13.69, -42.28)
CIE-LCH	lch(26.18, 44.44, 287.94°)
OKLab	oklab(36.82% -0.0199 -0.1218)
OKLCH	oklch(36.82% 0.123 260.7)
XYZ	xyz(5.6818, 4.8083, 20.7032)
Luminance	0.0481 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#143B7F #7F5814

analogous

#14717F #143B7F #23147F

triadic

#143B7F #7F143B #3B7F14

tetradic

#143B7F #7F1471 #7F5814 #147F23

square

#143B7F #7F1471 #7F5814 #147F23

split-complementary

#143B7F #7F2314 #717F14

monochromatic

#040C1A #0C224A #143B7F #1C54B4 #2F6FDE

Accessibility & contrast

On white

10.70

#143B7F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.96

#143B7F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #143B7F

10.70:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##143B7F	#FFFFFF	#000000	##FFFFFF
##143B7F	1.00	10.70	1.96	10.70
#FFFFFF	10.70	1.00	21.00	1.00
#000000	1.96	21.00	1.00	21.00
##FFFFFF	10.70	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0C4381

Deuteranopia (green-blind)

#00397E

Tritanopia (blue-blind)

#004C57

Achromatopsia (no color)

#3E3E3E

Design tokens & code

CSS

--color: #143b7f;
/* rgb */ color: rgb(20, 59, 127);
/* oklch */ color: oklch(36.8% 0.123 260.7);

Tailwind

colors: {
  custom: {
    50: '#6570a5',
    500: '#143b7f',
    950: '#000000',
  },
}

SCSS

$custom: #143b7f;
$custom-light: #6570a5;
$custom-dark: #000000;

JSON

{
  "hex": "#143b7f",
  "rgb": {
    "r": 20,
    "g": 59,
    "b": 127
  },
  "hsl": {
    "h": 218.131,
    "s": 72.789,
    "l": 28.824
  },
  "oklch": {
    "l": 0.3682,
    "c": 0.12346,
    "h": 260.7
  },
  "luminance": 0.04809
}

Semantic roles & 50–950 ramp

primary

#143B7F

secondary

#B4883B

accent

#AD38EF

background

#F6F6FA

surface

#EBECF4

border

#C6C7CE

text

#07070F

muted

#7A7A7F

Preview Lab

Preview with #143B7F

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

Preview Lab → · Contrast checker → · Palette generator →