#143A59#143A59

#143A59 is a dark, moderate cyan. Relative luminance 0.039; OKLCH L 33.8% C 0.069 H 246.5°. Best body text is #FFFFFF at 11.80:1 contrast (WCAG AA passes).

Color values

HEX	#143A59
RGB	rgb(20, 58, 89)
HSL	hsl(207, 63%, 21%)
HSV	hsv(207, 78%, 35%)
CMYK	cmyk(77.5%, 34.8%, 0%, 65.1%)
CIE-LAB	lab(23.32, -1.52, -22.47)
CIE-LCH	lch(23.32, 22.52, 266.13°)
OKLab	oklab(33.79% -0.0276 -0.0637)
OKLCH	oklch(33.79% 0.069 246.5)
XYZ	xyz(3.6040, 3.8957, 10.0113)
Luminance	0.0390 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#143A59 #593314

analogous

#145956 #143A59 #141759

triadic

#143A59 #59143A #3A5914

tetradic

#143A59 #561459 #593314 #175914

square

#143A59 #561459 #593314 #175914

split-complementary

#143A59 #591417 #595614

monochromatic

#061019 #091927 #143A59 #1F5B8B #2A7BBD

Accessibility & contrast

On white

11.80

#143A59 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.78

#143A59 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #143A59

11.80:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##143A59	#FFFFFF	#000000	##FFFFFF
##143A59	1.00	11.80	1.78	11.80
#FFFFFF	11.80	1.00	21.00	1.00
#000000	1.78	21.00	1.00	21.00
##FFFFFF	11.80	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2C3B5A

Deuteranopia (green-blind)

#223558

Tritanopia (blue-blind)

#004145

Achromatopsia (no color)

#383838

Design tokens & code

CSS

--color: #143a59;
/* rgb */ color: rgb(20, 58, 89);
/* oklch */ color: oklch(33.8% 0.069 246.5);

Tailwind

colors: {
  custom: {
    50: '#5c6f88',
    500: '#143a59',
    950: '#000000',
  },
}

SCSS

$custom: #143a59;
$custom-light: #5c6f88;
$custom-dark: #000000;

JSON

{
  "hex": "#143a59",
  "rgb": {
    "r": 20,
    "g": 58,
    "b": 89
  },
  "hsl": {
    "h": 206.957,
    "s": 63.303,
    "l": 21.373
  },
  "oklch": {
    "l": 0.33787,
    "c": 0.06943,
    "h": 246.5
  },
  "luminance": 0.03896
}

Semantic roles & 50–950 ramp

primary

#143A59

secondary

#916038

accent

#8C41E6

background

#F5F6F8

surface

#E9ECEF

border

#C5C7CA

text

#04070B

muted

#797A7C

Preview Lab

Preview with #143A59

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

Preview Lab → · Contrast checker → · Palette generator →