#143F4F#143F4F

#143F4F is a dark, muted cyan. Relative luminance 0.043; OKLCH L 34.6% C 0.054 H 226.4°. Best body text is #FFFFFF at 11.33:1 contrast (WCAG AA passes).

Color values

HEX	#143F4F
RGB	rgb(20, 63, 79)
HSL	hsl(196, 60%, 19%)
HSV	hsv(196, 75%, 31%)
CMYK	cmyk(74.7%, 20.3%, 0%, 69%)
CIE-LAB	lab(24.54, -8.76, -14.00)
CIE-LCH	lch(24.54, 16.51, 237.98°)
OKLab	oklab(34.58% -0.0373 -0.0392)
OKLCH	oklch(34.58% 0.054 226.4)
XYZ	xyz(3.4767, 4.2679, 8.0362)
Luminance	0.0427 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#143F4F #4F2414

analogous

#144F42 #143F4F #14224F

triadic

#143F4F #4F143F #3F4F14

tetradic

#143F4F #42144F #4F2414 #224F14

square

#143F4F #42144F #4F2414 #224F14

split-complementary

#143F4F #4F1422 #4F4214

monochromatic

#061318 #08181E #143F4F #206680 #2D8DB1

Accessibility & contrast

On white

11.33

#143F4F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.85

#143F4F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #143F4F

11.33:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##143F4F	#FFFFFF	#000000	##FFFFFF
##143F4F	1.00	11.33	1.85	11.33
#FFFFFF	11.33	1.00	21.00	1.00
#000000	1.85	21.00	1.00	21.00
##FFFFFF	11.33	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#363E50

Deuteranopia (green-blind)

#2E384F

Tritanopia (blue-blind)

#004444

Achromatopsia (no color)

#3A3A3A

Design tokens & code

CSS

--color: #143f4f;
/* rgb */ color: rgb(20, 63, 79);
/* oklch */ color: oklch(34.6% 0.054 226.4);

Tailwind

colors: {
  custom: {
    50: '#5a7480',
    500: '#143f4f',
    950: '#000000',
  },
}

SCSS

$custom: #143f4f;
$custom-light: #5a7480;
$custom-dark: #000000;

JSON

{
  "hex": "#143f4f",
  "rgb": {
    "r": 20,
    "g": 63,
    "b": 79
  },
  "hsl": {
    "h": 196.271,
    "s": 59.596,
    "l": 19.412
  },
  "oklch": {
    "l": 0.34583,
    "c": 0.05412,
    "h": 226.4
  },
  "luminance": 0.04268
}

Semantic roles & 50–950 ramp

primary

#143F4F

secondary

#874D38

accent

#7045E3

background

#F5F7F7

surface

#E9EDEE

border

#C5C8C9

text

#04080A

muted

#797B7C

Preview Lab

Preview with #143F4F

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

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