#143D66#143D66

#143D66 is a dark, moderate cyan. Relative luminance 0.044; OKLCH L 35.4% C 0.085 H 251.5°. Best body text is #FFFFFF at 11.12:1 contrast (WCAG AA passes).

Color values

HEX	#143D66
RGB	rgb(20, 61, 102)
HSL	hsl(210, 67%, 24%)
HSV	hsv(210, 80%, 40%)
CMYK	cmyk(80.4%, 40.2%, 0%, 60%)
CIE-LAB	lab(25.09, 1.80, -28.13)
CIE-LCH	lch(25.09, 28.19, 273.65°)
OKLab	oklab(35.43% -0.0268 -0.0802)
OKLCH	oklch(35.43% 0.085 251.5)
XYZ	xyz(4.3546, 4.4450, 13.1963)
Luminance	0.0445 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#143D66 #663D14

analogous

#146666 #143D66 #141466

triadic

#143D66 #66143D #3D6614

tetradic

#143D66 #661466 #663D14 #146614

square

#143D66 #661466 #663D14 #146614

split-complementary

#143D66 #661414 #666614

monochromatic

#050F1A #0A1E33 #143D66 #1E5C99 #287ACC

Accessibility & contrast

On white

11.12

#143D66 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.89

#143D66 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #143D66

11.12:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##143D66	#FFFFFF	#000000	##FFFFFF
##143D66	1.00	11.12	1.89	11.12
#FFFFFF	11.12	1.00	21.00	1.00
#000000	1.89	21.00	1.00	21.00
##FFFFFF	11.12	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2A4068

Deuteranopia (green-blind)

#1D3865

Tritanopia (blue-blind)

#00474C

Achromatopsia (no color)

#3B3B3B

Design tokens & code

CSS

--color: #143d66;
/* rgb */ color: rgb(20, 61, 102);
/* oklch */ color: oklch(35.4% 0.085 251.5);

Tailwind

colors: {
  custom: {
    50: '#5f7292',
    500: '#143d66',
    950: '#000000',
  },
}

SCSS

$custom: #143d66;
$custom-light: #5f7292;
$custom-dark: #000000;

JSON

{
  "hex": "#143d66",
  "rgb": {
    "r": 20,
    "g": 61,
    "b": 102
  },
  "hsl": {
    "h": 210,
    "s": 67.213,
    "l": 23.922
  },
  "oklch": {
    "l": 0.35425,
    "c": 0.08456,
    "h": 251.5
  },
  "luminance": 0.04446
}

Semantic roles & 50–950 ramp

primary

#143D66

secondary

#9D6B39

accent

#943EEA

background

#F5F6F9

surface

#EAECF1

border

#C6C7CB

text

#05070D

muted

#797A7E

Preview Lab

Preview with #143D66

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

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