#143B59#143B59

#143B59 is a dark, moderate cyan. Relative luminance 0.040; OKLCH L 34.1% C 0.068 H 245.2°. Best body text is #FFFFFF at 11.67:1 contrast (WCAG AA passes).

Color values

HEX	#143B59
RGB	rgb(20, 59, 89)
HSL	hsl(206, 63%, 21%)
HSV	hsv(206, 78%, 35%)
CMYK	cmyk(77.5%, 33.7%, 0%, 65.1%)
CIE-LAB	lab(23.66, -2.20, -21.94)
CIE-LCH	lch(23.66, 22.05, 264.28°)
OKLab	oklab(34.06% -0.0287 -0.0621)
OKLCH	oklch(34.06% 0.068 245.2)
XYZ	xyz(3.6549, 3.9975, 10.0282)
Luminance	0.0400 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#143B59 #593214

analogous

#145955 #143B59 #141959

triadic

#143B59 #59143B #3B5914

tetradic

#143B59 #551459 #593214 #195914

square

#143B59 #551459 #593214 #195914

split-complementary

#143B59 #591419 #595514

monochromatic

#061119 #091A27 #143B59 #1F5C8B #2A7DBD

Accessibility & contrast

On white

11.67

#143B59 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.80

#143B59 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #143B59

11.67:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##143B59	#FFFFFF	#000000	##FFFFFF
##143B59	1.00	11.67	1.80	11.67
#FFFFFF	11.67	1.00	21.00	1.00
#000000	1.80	21.00	1.00	21.00
##FFFFFF	11.67	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2D3C5A

Deuteranopia (green-blind)

#243558

Tritanopia (blue-blind)

#004246

Achromatopsia (no color)

#383838

Design tokens & code

CSS

--color: #143b59;
/* rgb */ color: rgb(20, 59, 89);
/* oklch */ color: oklch(34.1% 0.068 245.2);

Tailwind

colors: {
  custom: {
    50: '#5c7088',
    500: '#143b59',
    950: '#000000',
  },
}

SCSS

$custom: #143b59;
$custom-light: #5c7088;
$custom-dark: #000000;

JSON

{
  "hex": "#143b59",
  "rgb": {
    "r": 20,
    "g": 59,
    "b": 89
  },
  "hsl": {
    "h": 206.087,
    "s": 63.303,
    "l": 21.373
  },
  "oklch": {
    "l": 0.34055,
    "c": 0.06845,
    "h": 245.2
  },
  "luminance": 0.03998
}

Semantic roles & 50–950 ramp

primary

#143B59

secondary

#915F38

accent

#8941E6

background

#F5F6F8

surface

#E9ECEF

border

#C5C7CA

text

#04070B

muted

#797A7C

Preview Lab

Preview with #143B59

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

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