#143C4B#143C4B

#143C4B is a dark, muted cyan. Relative luminance 0.039; OKLCH L 33.5% C 0.051 H 226.3°. Best body text is #FFFFFF at 11.81:1 contrast (WCAG AA passes).

Color values

HEX	#143C4B
RGB	rgb(20, 60, 75)
HSL	hsl(196, 58%, 19%)
HSV	hsv(196, 73%, 29%)
CMYK	cmyk(73.3%, 20%, 0%, 70.6%)
CIE-LAB	lab(23.30, -8.38, -13.26)
CIE-LCH	lch(23.30, 15.69, 237.72°)
OKLab	oklab(33.53% -0.0355 -0.0371)
OKLCH	oklch(33.53% 0.051 226.3)
XYZ	xyz(3.1738, 3.8881, 7.2385)
Luminance	0.0389 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#143C4B #4B2314

analogous

#144B3E #143C4B #14204B

triadic

#143C4B #4B143C #3C4B14

tetradic

#143C4B #3E144B #4B2314 #204B14

square

#143C4B #3E144B #4B2314 #204B14

split-complementary

#143C4B #4B1420 #4B3E14

monochromatic

#061318 #07151B #143C4B #21637B #2E89AC

Accessibility & contrast

On white

11.81

#143C4B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.78

#143C4B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #143C4B

11.81:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##143C4B	#FFFFFF	#000000	##FFFFFF
##143C4B	1.00	11.81	1.78	11.81
#FFFFFF	11.81	1.00	21.00	1.00
#000000	1.78	21.00	1.00	21.00
##FFFFFF	11.81	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#343B4C

Deuteranopia (green-blind)

#2C354B

Tritanopia (blue-blind)

#004041

Achromatopsia (no color)

#383838

Design tokens & code

CSS

--color: #143c4b;
/* rgb */ color: rgb(20, 60, 75);
/* oklch */ color: oklch(33.5% 0.051 226.3);

Tailwind

colors: {
  custom: {
    50: '#59717d',
    500: '#143c4b',
    950: '#000000',
  },
}

SCSS

$custom: #143c4b;
$custom-light: #59717d;
$custom-dark: #000000;

JSON

{
  "hex": "#143c4b",
  "rgb": {
    "r": 20,
    "g": 60,
    "b": 75
  },
  "hsl": {
    "h": 196.364,
    "s": 57.895,
    "l": 18.627
  },
  "oklch": {
    "l": 0.33531,
    "c": 0.0513,
    "h": 226.3
  },
  "luminance": 0.03888
}

Semantic roles & 50–950 ramp

primary

#143C4B

secondary

#834C38

accent

#7147E1

background

#F5F6F7

surface

#E9ECEE

border

#C5C7C9

text

#040709

muted

#797A7B

Preview Lab

Preview with #143C4B

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

Preview Lab → · Contrast checker → · Palette generator →