#143D4B#143D4B

#143D4B is a dark, muted cyan. Relative luminance 0.040; OKLCH L 33.8% C 0.051 H 224.1°. Best body text is #FFFFFF at 11.67:1 contrast (WCAG AA passes).

Color values

HEX	#143D4B
RGB	rgb(20, 61, 75)
HSL	hsl(195, 58%, 19%)
HSV	hsv(195, 73%, 29%)
CMYK	cmyk(73.3%, 18.7%, 0%, 70.6%)
CIE-LAB	lab(23.65, -9.01, -12.72)
CIE-LCH	lch(23.65, 15.59, 234.69°)
OKLab	oklab(33.81% -0.0367 -0.0355)
OKLCH	oklch(33.81% 0.051 224.1)
XYZ	xyz(3.2267, 3.9939, 7.2561)
Luminance	0.0399 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#143D4B #4B2214

analogous

#144B3D #143D4B #14214B

triadic

#143D4B #4B143D #3D4B14

tetradic

#143D4B #3D144B #4B2214 #214B14

square

#143D4B #3D144B #4B2214 #214B14

split-complementary

#143D4B #4B1421 #4B3D14

monochromatic

#061418 #07161B #143D4B #21647B #2E8CAC

Accessibility & contrast

On white

11.67

#143D4B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.80

#143D4B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #143D4B

11.67:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##143D4B	#FFFFFF	#000000	##FFFFFF
##143D4B	1.00	11.67	1.80	11.67
#FFFFFF	11.67	1.00	21.00	1.00
#000000	1.80	21.00	1.00	21.00
##FFFFFF	11.67	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#353C4C

Deuteranopia (green-blind)

#2D364B

Tritanopia (blue-blind)

#004142

Achromatopsia (no color)

#383838

Design tokens & code

CSS

--color: #143d4b;
/* rgb */ color: rgb(20, 61, 75);
/* oklch */ color: oklch(33.8% 0.051 224.1);

Tailwind

colors: {
  custom: {
    50: '#59727d',
    500: '#143d4b',
    950: '#000000',
  },
}

SCSS

$custom: #143d4b;
$custom-light: #59727d;
$custom-dark: #000000;

JSON

{
  "hex": "#143d4b",
  "rgb": {
    "r": 20,
    "g": 61,
    "b": 75
  },
  "hsl": {
    "h": 195.273,
    "s": 57.895,
    "l": 18.627
  },
  "oklch": {
    "l": 0.33813,
    "c": 0.05107,
    "h": 224.1
  },
  "luminance": 0.03994
}

Semantic roles & 50–950 ramp

primary

#143D4B

secondary

#834B38

accent

#6E47E1

background

#F5F6F7

surface

#E9ECEE

border

#C5C7C9

text

#040809

muted

#797B7B

Preview Lab

Preview with #143D4B

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

Preview Lab → · Contrast checker → · Palette generator →