#143E5B#143E5B

#143E5B is a dark, moderate cyan. Relative luminance 0.043; OKLCH L 35.0% C 0.068 H 242.7°. Best body text is #FFFFFF at 11.23:1 contrast (WCAG AA passes).

Color values

HEX	#143E5B
RGB	rgb(20, 62, 91)
HSL	hsl(205, 64%, 22%)
HSV	hsv(205, 78%, 36%)
CMYK	cmyk(78%, 31.9%, 0%, 64.3%)
CIE-LAB	lab(24.79, -3.39, -21.47)
CIE-LCH	lch(24.79, 21.73, 261.01°)
OKLab	oklab(34.98% -0.0314 -0.0607)
OKLCH	oklch(34.98% 0.068 242.7)
XYZ	xyz(3.8987, 4.3489, 10.5294)
Luminance	0.0435 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#143E5B #5B3114

analogous

#145B55 #143E5B #141B5B

triadic

#143E5B #5B143E #3E5B14

tetradic

#143E5B #55145B #5B3114 #1B5B14

square

#143E5B #55145B #5B3114 #1B5B14

split-complementary

#143E5B #5B141B #5B5514

monochromatic

#061119 #091C29 #143E5B #1F608D #2A82BF

Accessibility & contrast

On white

11.23

#143E5B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.87

#143E5B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #143E5B

11.23:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##143E5B	#FFFFFF	#000000	##FFFFFF
##143E5B	1.00	11.23	1.87	11.23
#FFFFFF	11.23	1.00	21.00	1.00
#000000	1.87	21.00	1.00	21.00
##FFFFFF	11.23	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#313F5C

Deuteranopia (green-blind)

#27385A

Tritanopia (blue-blind)

#004548

Achromatopsia (no color)

#3B3B3B

Design tokens & code

CSS

--color: #143e5b;
/* rgb */ color: rgb(20, 62, 91);
/* oklch */ color: oklch(35.0% 0.068 242.7);

Tailwind

colors: {
  custom: {
    50: '#5c7389',
    500: '#143e5b',
    950: '#000000',
  },
}

SCSS

$custom: #143e5b;
$custom-light: #5c7389;
$custom-dark: #000000;

JSON

{
  "hex": "#143e5b",
  "rgb": {
    "r": 20,
    "g": 62,
    "b": 91
  },
  "hsl": {
    "h": 204.507,
    "s": 63.964,
    "l": 21.765
  },
  "oklch": {
    "l": 0.34983,
    "c": 0.06836,
    "h": 242.7
  },
  "luminance": 0.04349
}

Semantic roles & 50–950 ramp

primary

#143E5B

secondary

#935D38

accent

#8541E7

background

#F5F6F8

surface

#E9ECF0

border

#C5C7CB

text

#05080B

muted

#797B7C

Preview Lab

Preview with #143E5B

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

Preview Lab → · Contrast checker → · Palette generator →