#143B6B#143B6B

#143B6B is a dark, moderate cyan. Relative luminance 0.043; OKLCH L 35.3% C 0.094 H 255.5°. Best body text is #FFFFFF at 11.24:1 contrast (WCAG AA passes).

Color values

HEX	#143B6B
RGB	rgb(20, 59, 107)
HSL	hsl(213, 69%, 25%)
HSV	hsv(213, 81%, 42%)
CMYK	cmyk(81.3%, 44.9%, 0%, 58%)
CIE-LAB	lab(24.76, 5.27, -31.88)
CIE-LCH	lch(24.76, 32.31, 279.39°)
OKLab	oklab(35.27% -0.0236 -0.0912)
OKLCH	oklch(35.27% 0.094 255.5)
XYZ	xyz(4.5053, 4.3377, 14.5069)
Luminance	0.0434 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#143B6B #6B4414

analogous

#14676B #143B6B #18146B

triadic

#143B6B #6B143B #3B6B14

tetradic

#143B6B #6B1467 #6B4414 #146B18

square

#143B6B #6B1467 #6B4414 #146B18

split-complementary

#143B6B #6B1814 #676B14

monochromatic

#050E1A #0A1F37 #143B6B #1E579F #2774D2

Accessibility & contrast

On white

11.24

#143B6B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.87

#143B6B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #143B6B

11.24:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##143B6B	#FFFFFF	#000000	##FFFFFF
##143B6B	1.00	11.24	1.87	11.24
#FFFFFF	11.24	1.00	21.00	1.00
#000000	1.87	21.00	1.00	21.00
##FFFFFF	11.24	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#233F6D

Deuteranopia (green-blind)

#13376A

Tritanopia (blue-blind)

#00464D

Achromatopsia (no color)

#3B3B3B

Design tokens & code

CSS

--color: #143b6b;
/* rgb */ color: rgb(20, 59, 107);
/* oklch */ color: oklch(35.3% 0.094 255.5);

Tailwind

colors: {
  custom: {
    50: '#607096',
    500: '#143b6b',
    950: '#000000',
  },
}

SCSS

$custom: #143b6b;
$custom-light: #607096;
$custom-dark: #000000;

JSON

{
  "hex": "#143b6b",
  "rgb": {
    "r": 20,
    "g": 59,
    "b": 107
  },
  "hsl": {
    "h": 213.103,
    "s": 68.504,
    "l": 24.902
  },
  "oklch": {
    "l": 0.35268,
    "c": 0.09422,
    "h": 255.5
  },
  "luminance": 0.04338
}

Semantic roles & 50–950 ramp

primary

#143B6B

secondary

#A27339

accent

#9D3CEB

background

#F6F6F9

surface

#EBECF2

border

#C6C7CC

text

#05070D

muted

#7A7A7E

Preview Lab

Preview with #143B6B

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

Preview Lab → · Contrast checker → · Palette generator →