#143F6E#143F6E

#143F6E is a dark, moderate cyan. Relative luminance 0.048; OKLCH L 36.5% C 0.094 H 253.5°. Best body text is #FFFFFF at 10.68:1 contrast (WCAG AA passes).

Color values

HEX	#143F6E
RGB	rgb(20, 63, 110)
HSL	hsl(211, 69%, 25%)
HSV	hsv(211, 82%, 43%)
CMYK	cmyk(81.8%, 42.7%, 0%, 56.9%)
CIE-LAB	lab(26.24, 3.75, -31.43)
CIE-LCH	lch(26.24, 31.65, 276.81°)
OKLab	oklab(36.49% -0.0266 -0.0898)
OKLCH	oklch(36.49% 0.094 253.5)
XYZ	xyz(4.8794, 4.8289, 15.4237)
Luminance	0.0483 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#143F6E #6E4314

analogous

#146C6E #143F6E #16146E

triadic

#143F6E #6E143F #3F6E14

tetradic

#143F6E #6E146C #6E4314 #146E16

square

#143F6E #6E146C #6E4314 #146E16

split-complementary

#143F6E #6E1614 #6C6E14

monochromatic

#050F1A #0B213A #143F6E #1D5DA2 #277AD6

Accessibility & contrast

On white

10.68

#143F6E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.97

#143F6E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #143F6E

10.68:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##143F6E	#FFFFFF	#000000	##FFFFFF
##143F6E	1.00	10.68	1.97	10.68
#FFFFFF	10.68	1.00	21.00	1.00
#000000	1.97	21.00	1.00	21.00
##FFFFFF	10.68	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#284370

Deuteranopia (green-blind)

#193A6D

Tritanopia (blue-blind)

#004A51

Achromatopsia (no color)

#3E3E3E

Design tokens & code

CSS

--color: #143f6e;
/* rgb */ color: rgb(20, 63, 110);
/* oklch */ color: oklch(36.5% 0.094 253.5);

Tailwind

colors: {
  custom: {
    50: '#617398',
    500: '#143f6e',
    950: '#000000',
  },
}

SCSS

$custom: #143f6e;
$custom-light: #617398;
$custom-dark: #000000;

JSON

{
  "hex": "#143f6e",
  "rgb": {
    "r": 20,
    "g": 63,
    "b": 110
  },
  "hsl": {
    "h": 211.333,
    "s": 69.231,
    "l": 25.49
  },
  "oklch": {
    "l": 0.36485,
    "c": 0.09369,
    "h": 253.5
  },
  "luminance": 0.0483
}

Semantic roles & 50–950 ramp

primary

#143F6E

secondary

#A57139

accent

#983CEC

background

#F6F6F9

surface

#EBECF2

border

#C6C7CC

text

#06080D

muted

#7A7B7E

Preview Lab

Preview with #143F6E

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

Preview Lab → · Contrast checker → · Palette generator →