#143E58#143E58

#143E58 is a dark, moderate cyan. Relative luminance 0.043; OKLCH L 34.8% C 0.065 H 239.8°. Best body text is #FFFFFF at 11.29:1 contrast (WCAG AA passes).

Color values

HEX	#143E58
RGB	rgb(20, 62, 88)
HSL	hsl(203, 63%, 21%)
HSV	hsv(203, 77%, 35%)
CMYK	cmyk(77.3%, 29.5%, 0%, 65.5%)
CIE-LAB	lab(24.63, -4.60, -19.76)
CIE-LCH	lch(24.63, 20.29, 256.90°)
OKLab	oklab(34.81% -0.0325 -0.0557)
OKLCH	oklch(34.81% 0.065 239.8)
XYZ	xyz(3.7719, 4.2981, 9.8615)
Luminance	0.0430 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#143E58 #582E14

analogous

#145850 #143E58 #141C58

triadic

#143E58 #58143E #3E5814

tetradic

#143E58 #501458 #582E14 #1C5814

square

#143E58 #501458 #582E14 #1C5814

split-complementary

#143E58 #58141C #585014

monochromatic

#061219 #091B26 #143E58 #1F618A #2B84BC

Accessibility & contrast

On white

11.29

#143E58 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.86

#143E58 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #143E58

11.29:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##143E58	#FFFFFF	#000000	##FFFFFF
##143E58	1.00	11.29	1.86	11.29
#FFFFFF	11.29	1.00	21.00	1.00
#000000	1.86	21.00	1.00	21.00
##FFFFFF	11.29	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#323E59

Deuteranopia (green-blind)

#293858

Tritanopia (blue-blind)

#004547

Achromatopsia (no color)

#3A3A3A

Design tokens & code

CSS

--color: #143e58;
/* rgb */ color: rgb(20, 62, 88);
/* oklch */ color: oklch(34.8% 0.065 239.8);

Tailwind

colors: {
  custom: {
    50: '#5c7387',
    500: '#143e58',
    950: '#000000',
  },
}

SCSS

$custom: #143e58;
$custom-light: #5c7387;
$custom-dark: #000000;

JSON

{
  "hex": "#143e58",
  "rgb": {
    "r": 20,
    "g": 62,
    "b": 88
  },
  "hsl": {
    "h": 202.941,
    "s": 62.963,
    "l": 21.176
  },
  "oklch": {
    "l": 0.34805,
    "c": 0.06453,
    "h": 239.8
  },
  "luminance": 0.04299
}

Semantic roles & 50–950 ramp

primary

#143E58

secondary

#905A38

accent

#8142E6

background

#F5F6F8

surface

#E9ECEF

border

#C5C7CA

text

#04080B

muted

#797B7C

Preview Lab

Preview with #143E58

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

Preview Lab → · Contrast checker → · Palette generator →