#143D63#143D63

#143D63 is a dark, moderate cyan. Relative luminance 0.044; OKLCH L 35.2% C 0.080 H 249.8°. Best body text is #FFFFFF at 11.19:1 contrast (WCAG AA passes).

Color values

HEX	#143D63
RGB	rgb(20, 61, 99)
HSL	hsl(209, 66%, 23%)
HSV	hsv(209, 80%, 39%)
CMYK	cmyk(79.8%, 38.4%, 0%, 61.2%)
CIE-LAB	lab(24.91, 0.55, -26.48)
CIE-LCH	lch(24.91, 26.48, 271.19°)
OKLab	oklab(35.22% -0.0277 -0.0753)
OKLCH	oklch(35.22% 0.08 249.8)
XYZ	xyz(4.2085, 4.3866, 12.4269)
Luminance	0.0439 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#143D63 #633A14

analogous

#146361 #143D63 #141563

triadic

#143D63 #63143D #3D6314

tetradic

#143D63 #611463 #633A14 #156314

square

#143D63 #611463 #633A14 #156314

split-complementary

#143D63 #631415 #636114

monochromatic

#051019 #0A1E30 #143D63 #1E5C96 #297CC9

Accessibility & contrast

On white

11.19

#143D63 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.88

#143D63 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #143D63

11.19:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##143D63	#FFFFFF	#000000	##FFFFFF
##143D63	1.00	11.19	1.88	11.19
#FFFFFF	11.19	1.00	21.00	1.00
#000000	1.88	21.00	1.00	21.00
##FFFFFF	11.19	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2B3F65

Deuteranopia (green-blind)

#203862

Tritanopia (blue-blind)

#00464B

Achromatopsia (no color)

#3B3B3B

Design tokens & code

CSS

--color: #143d63;
/* rgb */ color: rgb(20, 61, 99);
/* oklch */ color: oklch(35.2% 0.080 249.8);

Tailwind

colors: {
  custom: {
    50: '#5e728f',
    500: '#143d63',
    950: '#000000',
  },
}

SCSS

$custom: #143d63;
$custom-light: #5e728f;
$custom-dark: #000000;

JSON

{
  "hex": "#143d63",
  "rgb": {
    "r": 20,
    "g": 61,
    "b": 99
  },
  "hsl": {
    "h": 208.861,
    "s": 66.387,
    "l": 23.333
  },
  "oklch": {
    "l": 0.35224,
    "c": 0.08028,
    "h": 249.8
  },
  "luminance": 0.04387
}

Semantic roles & 50–950 ramp

primary

#143D63

secondary

#9A6838

accent

#913EE9

background

#F5F6F8

surface

#EAECF0

border

#C6C7CB

text

#05070C

muted

#797A7D

Preview Lab

Preview with #143D63

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

Preview Lab → · Contrast checker → · Palette generator →