#143F6F#143F6F

#143F6F is a dark, moderate cyan. Relative luminance 0.049; OKLCH L 36.6% C 0.095 H 253.9°. Best body text is #FFFFFF at 10.66:1 contrast (WCAG AA passes).

Color values

HEX	#143F6F
RGB	rgb(20, 63, 111)
HSL	hsl(212, 69%, 26%)
HSV	hsv(212, 82%, 44%)
CMYK	cmyk(82%, 43.2%, 0%, 56.5%)
CIE-LAB	lab(26.31, 4.17, -31.96)
CIE-LCH	lch(26.31, 32.23, 277.43°)
OKLab	oklab(36.56% -0.0264 -0.0914)
OKLCH	oklch(36.56% 0.095 253.9)
XYZ	xyz(4.9342, 4.8508, 15.7121)
Luminance	0.0485 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#143F6F #6F4414

analogous

#146C6F #143F6F #16146F

triadic

#143F6F #6F143F #3F6F14

tetradic

#143F6F #6F146C #6F4414 #146F16

square

#143F6F #6F146C #6F4414 #146F16

split-complementary

#143F6F #6F1614 #6C6F14

monochromatic

#050F1A #0B223B #143F6F #1D5CA3 #277AD7

Accessibility & contrast

On white

10.66

#143F6F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.97

#143F6F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #143F6F

10.66:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##143F6F	#FFFFFF	#000000	##FFFFFF
##143F6F	1.00	10.66	1.97	10.66
#FFFFFF	10.66	1.00	21.00	1.00
#000000	1.97	21.00	1.00	21.00
##FFFFFF	10.66	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#284371

Deuteranopia (green-blind)

#183A6E

Tritanopia (blue-blind)

#004A51

Achromatopsia (no color)

#3E3E3E

Design tokens & code

CSS

--color: #143f6f;
/* rgb */ color: rgb(20, 63, 111);
/* oklch */ color: oklch(36.6% 0.095 253.9);

Tailwind

colors: {
  custom: {
    50: '#617398',
    500: '#143f6f',
    950: '#000000',
  },
}

SCSS

$custom: #143f6f;
$custom-light: #617398;
$custom-dark: #000000;

JSON

{
  "hex": "#143f6f",
  "rgb": {
    "r": 20,
    "g": 63,
    "b": 111
  },
  "hsl": {
    "h": 211.648,
    "s": 69.466,
    "l": 25.686
  },
  "oklch": {
    "l": 0.36556,
    "c": 0.09514,
    "h": 253.9
  },
  "luminance": 0.04851
}

Semantic roles & 50–950 ramp

primary

#143F6F

secondary

#A67239

accent

#993CEC

background

#F6F6F9

surface

#EBECF2

border

#C6C7CC

text

#06080E

muted

#7A7B7E

Preview Lab

Preview with #143F6F

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

Preview Lab → · Contrast checker → · Palette generator →