#143D5D#143D5D

#143D5D is a dark, moderate cyan. Relative luminance 0.043; OKLCH L 34.8% C 0.072 H 245.7°. Best body text is #FFFFFF at 11.32:1 contrast (WCAG AA passes).

Color values

HEX	#143D5D
RGB	rgb(20, 61, 93)
HSL	hsl(206, 65%, 22%)
HSV	hsv(206, 78%, 36%)
CMYK	cmyk(78.5%, 34.4%, 0%, 63.5%)
CIE-LAB	lab(24.56, -1.91, -23.13)
CIE-LCH	lch(24.56, 23.21, 265.27°)
OKLab	oklab(34.84% -0.0296 -0.0656)
OKLCH	oklch(34.84% 0.072 245.7)
XYZ	xyz(3.9323, 4.2761, 10.9719)
Luminance	0.0428 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#143D5D #5D3414

analogous

#145D59 #143D5D #14195D

triadic

#143D5D #5D143D #3D5D14

tetradic

#143D5D #59145D #5D3414 #195D14

square

#143D5D #59145D #5D3414 #195D14

split-complementary

#143D5D #5D1419 #5D5914

monochromatic

#051119 #091C2B #143D5D #1F5E8F #2A7FC2

Accessibility & contrast

On white

11.32

#143D5D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.86

#143D5D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #143D5D

11.32:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##143D5D	#FFFFFF	#000000	##FFFFFF
##143D5D	1.00	11.32	1.86	11.32
#FFFFFF	11.32	1.00	21.00	1.00
#000000	1.86	21.00	1.00	21.00
##FFFFFF	11.32	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2E3E5E

Deuteranopia (green-blind)

#24375C

Tritanopia (blue-blind)

#004548

Achromatopsia (no color)

#3A3A3A

Design tokens & code

CSS

--color: #143d5d;
/* rgb */ color: rgb(20, 61, 93);
/* oklch */ color: oklch(34.8% 0.072 245.7);

Tailwind

colors: {
  custom: {
    50: '#5d728b',
    500: '#143d5d',
    950: '#000000',
  },
}

SCSS

$custom: #143d5d;
$custom-light: #5d728b;
$custom-dark: #000000;

JSON

{
  "hex": "#143d5d",
  "rgb": {
    "r": 20,
    "g": 61,
    "b": 93
  },
  "hsl": {
    "h": 206.301,
    "s": 64.602,
    "l": 22.157
  },
  "oklch": {
    "l": 0.34839,
    "c": 0.07194,
    "h": 245.7
  },
  "luminance": 0.04277
}

Semantic roles & 50–950 ramp

primary

#143D5D

secondary

#956138

accent

#8A40E8

background

#F5F6F8

surface

#E9ECF0

border

#C5C7CB

text

#05070C

muted

#797A7D

Preview Lab

Preview with #143D5D

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

Preview Lab → · Contrast checker → · Palette generator →