#143B58#143B58

#143B58 is a dark, moderate cyan. Relative luminance 0.040; OKLCH L 34.0% C 0.067 H 244.3°. Best body text is #FFFFFF at 11.69:1 contrast (WCAG AA passes).

Color values

HEX	#143B58
RGB	rgb(20, 59, 88)
HSL	hsl(206, 63%, 21%)
HSV	hsv(206, 77%, 35%)
CMYK	cmyk(77.3%, 33%, 0%, 65.5%)
CIE-LAB	lab(23.61, -2.60, -21.37)
CIE-LCH	lch(23.61, 21.52, 263.05°)
OKLab	oklab(33.99% -0.0291 -0.0605)
OKLCH	oklch(33.99% 0.067 244.3)
XYZ	xyz(3.6132, 3.9808, 9.8086)
Luminance	0.0398 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#143B58 #583114

analogous

#145853 #143B58 #141958

triadic

#143B58 #58143B #3B5814

tetradic

#143B58 #531458 #583114 #195814

square

#143B58 #531458 #583114 #195814

split-complementary

#143B58 #581419 #585314

monochromatic

#061119 #091A26 #143B58 #1F5C8A #2B7EBC

Accessibility & contrast

On white

11.69

#143B58 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.80

#143B58 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #143B58

11.69:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##143B58	#FFFFFF	#000000	##FFFFFF
##143B58	1.00	11.69	1.80	11.69
#FFFFFF	11.69	1.00	21.00	1.00
#000000	1.80	21.00	1.00	21.00
##FFFFFF	11.69	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2E3C59

Deuteranopia (green-blind)

#243557

Tritanopia (blue-blind)

#004245

Achromatopsia (no color)

#383838

Design tokens & code

CSS

--color: #143b58;
/* rgb */ color: rgb(20, 59, 88);
/* oklch */ color: oklch(34.0% 0.067 244.3);

Tailwind

colors: {
  custom: {
    50: '#5c7087',
    500: '#143b58',
    950: '#000000',
  },
}

SCSS

$custom: #143b58;
$custom-light: #5c7087;
$custom-dark: #000000;

JSON

{
  "hex": "#143b58",
  "rgb": {
    "r": 20,
    "g": 59,
    "b": 88
  },
  "hsl": {
    "h": 205.588,
    "s": 62.963,
    "l": 21.176
  },
  "oklch": {
    "l": 0.33993,
    "c": 0.0671,
    "h": 244.3
  },
  "luminance": 0.03981
}

Semantic roles & 50–950 ramp

primary

#143B58

secondary

#905D38

accent

#8842E6

background

#F5F6F8

surface

#E9ECEF

border

#C5C7CA

text

#04070B

muted

#797A7C

Preview Lab

Preview with #143B58

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

Preview Lab → · Contrast checker → · Palette generator →