#143B54#143B54

#143B54 is a dark, moderate cyan. Relative luminance 0.039; OKLCH L 33.8% C 0.062 H 240.4°. Best body text is #FFFFFF at 11.78:1 contrast (WCAG AA passes).

Color values

HEX	#143B54
RGB	rgb(20, 59, 84)
HSL	hsl(203, 62%, 20%)
HSV	hsv(203, 76%, 33%)
CMYK	cmyk(76.2%, 29.8%, 0%, 67.1%)
CIE-LAB	lab(23.39, -4.21, -19.07)
CIE-LCH	lch(23.39, 19.53, 257.54°)
OKLab	oklab(33.75% -0.0306 -0.0538)
OKLCH	oklch(33.75% 0.062 240.4)
XYZ	xyz(3.4521, 3.9164, 8.9598)
Luminance	0.0392 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#143B54 #542D14

analogous

#14544D #143B54 #141B54

triadic

#143B54 #54143B #3B5414

tetradic

#143B54 #4D1454 #542D14 #1B5414

square

#143B54 #4D1454 #542D14 #1B5414

split-complementary

#143B54 #54141B #544D14

monochromatic

#061119 #081823 #143B54 #205E85 #2C80B7

Accessibility & contrast

On white

11.78

#143B54 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.78

#143B54 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #143B54

11.78:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##143B54	#FFFFFF	#000000	##FFFFFF
##143B54	1.00	11.78	1.78	11.78
#FFFFFF	11.78	1.00	21.00	1.00
#000000	1.78	21.00	1.00	21.00
##FFFFFF	11.78	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2F3B55

Deuteranopia (green-blind)

#273554

Tritanopia (blue-blind)

#004144

Achromatopsia (no color)

#383838

Design tokens & code

CSS

--color: #143b54;
/* rgb */ color: rgb(20, 59, 84);
/* oklch */ color: oklch(33.8% 0.062 240.4);

Tailwind

colors: {
  custom: {
    50: '#5b7084',
    500: '#143b54',
    950: '#000000',
  },
}

SCSS

$custom: #143b54;
$custom-light: #5b7084;
$custom-dark: #000000;

JSON

{
  "hex": "#143b54",
  "rgb": {
    "r": 20,
    "g": 59,
    "b": 84
  },
  "hsl": {
    "h": 203.438,
    "s": 61.538,
    "l": 20.392
  },
  "oklch": {
    "l": 0.33753,
    "c": 0.06187,
    "h": 240.4
  },
  "luminance": 0.03917
}

Semantic roles & 50–950 ramp

primary

#143B54

secondary

#8C5938

accent

#8243E5

background

#F5F6F8

surface

#E9ECEF

border

#C5C7CA

text

#04070B

muted

#797A7C

Preview Lab

Preview with #143B54

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

Preview Lab → · Contrast checker → · Palette generator →