#143E63#143E63

#143E63 is a dark, moderate cyan. Relative luminance 0.045; OKLCH L 35.5% C 0.079 H 248.7°. Best body text is #FFFFFF at 11.06:1 contrast (WCAG AA passes).

Color values

HEX	#143E63
RGB	rgb(20, 62, 99)
HSL	hsl(208, 66%, 23%)
HSV	hsv(208, 80%, 39%)
CMYK	cmyk(79.8%, 37.4%, 0%, 61.2%)
CIE-LAB	lab(25.24, -0.13, -25.95)
CIE-LCH	lch(25.24, 25.95, 269.71°)
OKLab	oklab(35.49% -0.0287 -0.0738)
OKLCH	oklch(35.49% 0.079 248.7)
XYZ	xyz(4.2624, 4.4943, 12.4448)
Luminance	0.0449 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#143E63 #633914

analogous

#146360 #143E63 #141663

triadic

#143E63 #63143E #3E6314

tetradic

#143E63 #601463 #633914 #166314

square

#143E63 #601463 #633914 #166314

split-complementary

#143E63 #631416 #636014

monochromatic

#051019 #0A1E30 #143E63 #1E5E96 #297EC9

Accessibility & contrast

On white

11.06

#143E63 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.90

#143E63 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #143E63

11.06:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##143E63	#FFFFFF	#000000	##FFFFFF
##143E63	1.00	11.06	1.90	11.06
#FFFFFF	11.06	1.00	21.00	1.00
#000000	1.90	21.00	1.00	21.00
##FFFFFF	11.06	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2D4065

Deuteranopia (green-blind)

#213962

Tritanopia (blue-blind)

#00474B

Achromatopsia (no color)

#3C3C3C

Design tokens & code

CSS

--color: #143e63;
/* rgb */ color: rgb(20, 62, 99);
/* oklch */ color: oklch(35.5% 0.079 248.7);

Tailwind

colors: {
  custom: {
    50: '#5e738f',
    500: '#143e63',
    950: '#000000',
  },
}

SCSS

$custom: #143e63;
$custom-light: #5e738f;
$custom-dark: #000000;

JSON

{
  "hex": "#143e63",
  "rgb": {
    "r": 20,
    "g": 62,
    "b": 99
  },
  "hsl": {
    "h": 208.101,
    "s": 66.387,
    "l": 23.333
  },
  "oklch": {
    "l": 0.35485,
    "c": 0.07919,
    "h": 248.7
  },
  "luminance": 0.04495
}

Semantic roles & 50–950 ramp

primary

#143E63

secondary

#9A6638

accent

#8E3EE9

background

#F5F6F8

surface

#EAECF0

border

#C6C7CB

text

#05080C

muted

#797B7D

Preview Lab

Preview with #143E63

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

Preview Lab → · Contrast checker → · Palette generator →