#143B7C#143B7C

#143B7C is a dark, moderate blue. Relative luminance 0.047; OKLCH L 36.6% C 0.119 H 260.2°. Best body text is #FFFFFF at 10.79:1 contrast (WCAG AA passes).

Color values

HEX	#143B7C
RGB	rgb(20, 59, 124)
HSL	hsl(218, 72%, 28%)
HSV	hsv(218, 84%, 49%)
CMYK	cmyk(83.9%, 52.4%, 0%, 51.4%)
CIE-LAB	lab(25.95, 12.43, -40.76)
CIE-LCH	lch(25.95, 42.61, 286.96°)
OKLab	oklab(36.58% -0.0204 -0.1174)
OKLCH	oklch(36.58% 0.119 260.2)
XYZ	xyz(5.4892, 4.7312, 19.6888)
Luminance	0.0473 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#143B7C #7C5514

analogous

#146F7C #143B7C #21147C

triadic

#143B7C #7C143B #3B7C14

tetradic

#143B7C #7C146F #7C5514 #147C21

square

#143B7C #7C146F #7C5514 #147C21

split-complementary

#143B7C #7C2114 #6F7C14

monochromatic

#040D1A #0B2247 #143B7C #1D54B1 #2D6FDD

Accessibility & contrast

On white

10.79

#143B7C on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.95

#143B7C on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #143B7C

10.79:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##143B7C	#FFFFFF	#000000	##FFFFFF
##143B7C	1.00	10.79	1.95	10.79
#FFFFFF	10.79	1.00	21.00	1.00
#000000	1.95	21.00	1.00	21.00
##FFFFFF	10.79	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#11427E

Deuteranopia (green-blind)

#00397B

Tritanopia (blue-blind)

#004B55

Achromatopsia (no color)

#3D3D3D

Design tokens & code

CSS

--color: #143b7c;
/* rgb */ color: rgb(20, 59, 124);
/* oklch */ color: oklch(36.6% 0.119 260.2);

Tailwind

colors: {
  custom: {
    50: '#6570a2',
    500: '#143b7c',
    950: '#000000',
  },
}

SCSS

$custom: #143b7c;
$custom-light: #6570a2;
$custom-dark: #000000;

JSON

{
  "hex": "#143b7c",
  "rgb": {
    "r": 20,
    "g": 59,
    "b": 124
  },
  "hsl": {
    "h": 217.5,
    "s": 72.222,
    "l": 28.235
  },
  "oklch": {
    "l": 0.36575,
    "c": 0.11912,
    "h": 260.2
  },
  "luminance": 0.04732
}

Semantic roles & 50–950 ramp

primary

#143B7C

secondary

#B2853A

accent

#AB39EF

background

#F6F6FA

surface

#EBECF4

border

#C6C7CE

text

#06070F

muted

#7A7A7F

Preview Lab

Preview with #143B7C

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

Preview Lab → · Contrast checker → · Palette generator →