#143B66#143B66

#143B66 is a dark, moderate cyan. Relative luminance 0.042; OKLCH L 34.9% C 0.087 H 253.4°. Best body text is #FFFFFF at 11.37:1 contrast (WCAG AA passes).

Color values

HEX	#143B66
RGB	rgb(20, 59, 102)
HSL	hsl(211, 67%, 24%)
HSV	hsv(211, 80%, 40%)
CMYK	cmyk(80.4%, 42.2%, 0%, 60%)
CIE-LAB	lab(24.44, 3.18, -29.17)
CIE-LCH	lch(24.44, 29.34, 276.21°)
OKLab	oklab(34.91% -0.0248 -0.0833)
OKLCH	oklch(34.91% 0.087 253.4)
XYZ	xyz(4.2498, 4.2355, 13.1613)
Luminance	0.0424 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#143B66 #663F14

analogous

#146466 #143B66 #161466

triadic

#143B66 #66143B #3B6614

tetradic

#143B66 #661464 #663F14 #146616

square

#143B66 #661464 #663F14 #146616

split-complementary

#143B66 #661614 #646614

monochromatic

#050F1A #0A1D33 #143B66 #1E5999 #2876CC

Accessibility & contrast

On white

11.37

#143B66 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.85

#143B66 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #143B66

11.37:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##143B66	#FFFFFF	#000000	##FFFFFF
##143B66	1.00	11.37	1.85	11.37
#FFFFFF	11.37	1.00	21.00	1.00
#000000	1.85	21.00	1.00	21.00
##FFFFFF	11.37	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#273E68

Deuteranopia (green-blind)

#193765

Tritanopia (blue-blind)

#00454B

Achromatopsia (no color)

#3A3A3A

Design tokens & code

CSS

--color: #143b66;
/* rgb */ color: rgb(20, 59, 102);
/* oklch */ color: oklch(34.9% 0.087 253.4);

Tailwind

colors: {
  custom: {
    50: '#5f7092',
    500: '#143b66',
    950: '#000000',
  },
}

SCSS

$custom: #143b66;
$custom-light: #5f7092;
$custom-dark: #000000;

JSON

{
  "hex": "#143b66",
  "rgb": {
    "r": 20,
    "g": 59,
    "b": 102
  },
  "hsl": {
    "h": 211.463,
    "s": 67.213,
    "l": 23.922
  },
  "oklch": {
    "l": 0.34912,
    "c": 0.0869,
    "h": 253.4
  },
  "luminance": 0.04236
}

Semantic roles & 50–950 ramp

primary

#143B66

secondary

#9D6D39

accent

#983EEA

background

#F5F6F9

surface

#EAECF1

border

#C6C7CB

text

#05070D

muted

#797A7E

Preview Lab

Preview with #143B66

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

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