#143B5F#143B5F

#143B5F is a dark, moderate cyan. Relative luminance 0.041; OKLCH L 34.4% C 0.077 H 249.6°. Best body text is #FFFFFF at 11.53:1 contrast (WCAG AA passes).

Color values

HEX	#143B5F
RGB	rgb(20, 59, 95)
HSL	hsl(209, 65%, 23%)
HSV	hsv(209, 79%, 37%)
CMYK	cmyk(78.9%, 37.9%, 0%, 62.7%)
CIE-LAB	lab(24.01, 0.26, -25.31)
CIE-LCH	lch(24.01, 25.31, 270.60°)
OKLab	oklab(34.44% -0.0268 -0.072)
OKLCH	oklch(34.44% 0.077 249.6)
XYZ	xyz(3.9172, 4.1024, 11.4097)
Luminance	0.0410 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#143B5F #5F3814

analogous

#145F5D #143B5F #14165F

triadic

#143B5F #5F143B #3B5F14

tetradic

#143B5F #5D145F #5F3814 #165F14

square

#143B5F #5D145F #5F3814 #165F14

split-complementary

#143B5F #5F1416 #5F5D14

monochromatic

#051019 #091C2C #143B5F #1F5A92 #297AC4

Accessibility & contrast

On white

11.53

#143B5F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.82

#143B5F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #143B5F

11.53:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##143B5F	#FFFFFF	#000000	##FFFFFF
##143B5F	1.00	11.53	1.82	11.53
#FFFFFF	11.53	1.00	21.00	1.00
#000000	1.82	21.00	1.00	21.00
##FFFFFF	11.53	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2B3D61

Deuteranopia (green-blind)

#20365E

Tritanopia (blue-blind)

#004448

Achromatopsia (no color)

#393939

Design tokens & code

CSS

--color: #143b5f;
/* rgb */ color: rgb(20, 59, 95);
/* oklch */ color: oklch(34.4% 0.077 249.6);

Tailwind

colors: {
  custom: {
    50: '#5d708c',
    500: '#143b5f',
    950: '#000000',
  },
}

SCSS

$custom: #143b5f;
$custom-light: #5d708c;
$custom-dark: #000000;

JSON

{
  "hex": "#143b5f",
  "rgb": {
    "r": 20,
    "g": 59,
    "b": 95
  },
  "hsl": {
    "h": 208.8,
    "s": 65.217,
    "l": 22.549
  },
  "oklch": {
    "l": 0.34438,
    "c": 0.0768,
    "h": 249.6
  },
  "luminance": 0.04103
}

Semantic roles & 50–950 ramp

primary

#143B5F

secondary

#976638

accent

#9140E8

background

#F5F6F8

surface

#E9ECF0

border

#C5C7CB

text

#05070C

muted

#797A7D

Preview Lab

Preview with #143B5F

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

Preview Lab → · Contrast checker → · Palette generator →