#143757#143757

#143757 is a dark, moderate cyan. Relative luminance 0.036; OKLCH L 32.9% C 0.070 H 249.0°. Best body text is #FFFFFF at 12.25:1 contrast (WCAG AA passes).

Color values

HEX	#143757
RGB	rgb(20, 55, 87)
HSL	hsl(209, 63%, 21%)
HSV	hsv(209, 77%, 34%)
CMYK	cmyk(77%, 36.8%, 0%, 65.9%)
CIE-LAB	lab(22.19, -0.29, -22.94)
CIE-LCH	lch(22.19, 22.94, 269.28°)
OKLab	oklab(32.86% -0.0249 -0.0651)
OKLCH	oklch(32.86% 0.07 249)
XYZ	xyz(3.3743, 3.5688, 9.5260)
Luminance	0.0357 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#143757 #573414

analogous

#145755 #143757 #141557

triadic

#143757 #571437 #375714

tetradic

#143757 #551457 #573414 #155714

square

#143757 #551457 #573414 #155714

split-complementary

#143757 #571415 #575514

monochromatic

#061019 #091825 #143757 #1F5689 #2B76BB

Accessibility & contrast

On white

12.25

#143757 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.71

#143757 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #143757

12.25:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##143757	#FFFFFF	#000000	##FFFFFF
##143757	1.00	12.25	1.71	12.25
#FFFFFF	12.25	1.00	21.00	1.00
#000000	1.71	21.00	1.00	21.00
##FFFFFF	12.25	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#293958

Deuteranopia (green-blind)

#1F3256

Tritanopia (blue-blind)

#003F43

Achromatopsia (no color)

#353535

Design tokens & code

CSS

--color: #143757;
/* rgb */ color: rgb(20, 55, 87);
/* oklch */ color: oklch(32.9% 0.070 249.0);

Tailwind

colors: {
  custom: {
    50: '#5b6d86',
    500: '#143757',
    950: '#000000',
  },
}

SCSS

$custom: #143757;
$custom-light: #5b6d86;
$custom-dark: #000000;

JSON

{
  "hex": "#143757",
  "rgb": {
    "r": 20,
    "g": 55,
    "b": 87
  },
  "hsl": {
    "h": 208.657,
    "s": 62.617,
    "l": 20.98
  },
  "oklch": {
    "l": 0.32859,
    "c": 0.06971,
    "h": 249
  },
  "luminance": 0.03569
}

Semantic roles & 50–950 ramp

primary

#143757

secondary

#8F6138

accent

#9042E6

background

#F5F6F8

surface

#E9EBEF

border

#C5C6CA

text

#04070B

muted

#797A7C

Preview Lab

Preview with #143757

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

Preview Lab → · Contrast checker → · Palette generator →