#143C5E#143C5E

#143C5E is a dark, moderate cyan. Relative luminance 0.042; OKLCH L 34.6% C 0.074 H 247.7°. Best body text is #FFFFFF at 11.43:1 contrast (WCAG AA passes).

Color values

HEX	#143C5E
RGB	rgb(20, 60, 94)
HSL	hsl(208, 65%, 22%)
HSV	hsv(208, 79%, 37%)
CMYK	cmyk(78.7%, 36.2%, 0%, 63.1%)
CIE-LAB	lab(24.28, -0.83, -24.22)
CIE-LCH	lch(24.28, 24.24, 268.04°)
OKLab	oklab(34.64% -0.0282 -0.0688)
OKLCH	oklch(34.64% 0.074 247.7)
XYZ	xyz(3.9240, 4.1881, 11.1891)
Luminance	0.0419 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#143C5E #5E3614

analogous

#145E5B #143C5E #14175E

triadic

#143C5E #5E143C #3C5E14

tetradic

#143C5E #5B145E #5E3614 #175E14

square

#143C5E #5B145E #5E3614 #175E14

split-complementary

#143C5E #5E1417 #5E5B14

monochromatic

#051019 #091C2C #143C5E #1F5C90 #297CC3

Accessibility & contrast

On white

11.43

#143C5E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.84

#143C5E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #143C5E

11.43:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##143C5E	#FFFFFF	#000000	##FFFFFF
##143C5E	1.00	11.43	1.84	11.43
#FFFFFF	11.43	1.00	21.00	1.00
#000000	1.84	21.00	1.00	21.00
##FFFFFF	11.43	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2C3E5F

Deuteranopia (green-blind)

#22375D

Tritanopia (blue-blind)

#004448

Achromatopsia (no color)

#3A3A3A

Design tokens & code

CSS

--color: #143c5e;
/* rgb */ color: rgb(20, 60, 94);
/* oklch */ color: oklch(34.6% 0.074 247.7);

Tailwind

colors: {
  custom: {
    50: '#5d718c',
    500: '#143c5e',
    950: '#000000',
  },
}

SCSS

$custom: #143c5e;
$custom-light: #5d718c;
$custom-dark: #000000;

JSON

{
  "hex": "#143c5e",
  "rgb": {
    "r": 20,
    "g": 60,
    "b": 94
  },
  "hsl": {
    "h": 207.568,
    "s": 64.912,
    "l": 22.353
  },
  "oklch": {
    "l": 0.34637,
    "c": 0.07433,
    "h": 247.7
  },
  "luminance": 0.04189
}

Semantic roles & 50–950 ramp

primary

#143C5E

secondary

#966338

accent

#8D40E8

background

#F5F6F8

surface

#E9ECF0

border

#C5C7CB

text

#05070C

muted

#797A7D

Preview Lab

Preview with #143C5E

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

Preview Lab → · Contrast checker → · Palette generator →