#143A51#143A51

#143A51 is a dark, muted cyan. Relative luminance 0.038; OKLCH L 33.3% C 0.059 H 238.8°. Best body text is #FFFFFF at 11.97:1 contrast (WCAG AA passes).

Color values

HEX	#143A51
RGB	rgb(20, 58, 81)
HSL	hsl(203, 60%, 20%)
HSV	hsv(203, 75%, 32%)
CMYK	cmyk(75.3%, 28.4%, 0%, 68.2%)
CIE-LAB	lab(22.89, -4.75, -17.87)
CIE-LCH	lch(22.89, 18.49, 255.13°)
OKLab	oklab(33.3% -0.0305 -0.0503)
OKLCH	oklch(33.3% 0.059 238.8)
XYZ	xyz(3.2862, 3.7686, 8.3372)
Luminance	0.0377 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#143A51 #512B14

analogous

#14514A #143A51 #141C51

triadic

#143A51 #51143A #3A5114

tetradic

#143A51 #4A1451 #512B14 #1C5114

square

#143A51 #4A1451 #512B14 #1C5114

split-complementary

#143A51 #51141C #514A14

monochromatic

#061219 #081720 #143A51 #205D82 #2C80B3

Accessibility & contrast

On white

11.97

#143A51 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.75

#143A51 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #143A51

11.97:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##143A51	#FFFFFF	#000000	##FFFFFF
##143A51	1.00	11.97	1.75	11.97
#FFFFFF	11.97	1.00	21.00	1.00
#000000	1.75	21.00	1.00	21.00
##FFFFFF	11.97	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2F3A52

Deuteranopia (green-blind)

#273451

Tritanopia (blue-blind)

#004042

Achromatopsia (no color)

#373737

Design tokens & code

CSS

--color: #143a51;
/* rgb */ color: rgb(20, 58, 81);
/* oklch */ color: oklch(33.3% 0.059 238.8);

Tailwind

colors: {
  custom: {
    50: '#5a7082',
    500: '#143a51',
    950: '#000000',
  },
}

SCSS

$custom: #143a51;
$custom-light: #5a7082;
$custom-dark: #000000;

JSON

{
  "hex": "#143a51",
  "rgb": {
    "r": 20,
    "g": 58,
    "b": 81
  },
  "hsl": {
    "h": 202.623,
    "s": 60.396,
    "l": 19.804
  },
  "oklch": {
    "l": 0.33303,
    "c": 0.05888,
    "h": 238.8
  },
  "luminance": 0.03769
}

Semantic roles & 50–950 ramp

primary

#143A51

secondary

#895638

accent

#8044E4

background

#F5F6F7

surface

#E9ECEE

border

#C5C7C9

text

#04070A

muted

#797A7C

Preview Lab

Preview with #143A51

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

Preview Lab → · Contrast checker → · Palette generator →