#143D5F#143D5F

#143D5F is a dark, moderate cyan. Relative luminance 0.043; OKLCH L 35.0% C 0.075 H 247.2°. Best body text is #FFFFFF at 11.28:1 contrast (WCAG AA passes).

Color values

HEX	#143D5F
RGB	rgb(20, 61, 95)
HSL	hsl(207, 65%, 23%)
HSV	hsv(207, 79%, 37%)
CMYK	cmyk(78.9%, 35.8%, 0%, 62.7%)
CIE-LAB	lab(24.68, -1.10, -24.25)
CIE-LCH	lch(24.68, 24.28, 267.41°)
OKLab	oklab(34.97% -0.0289 -0.0688)
OKLCH	oklch(34.97% 0.075 247.2)
XYZ	xyz(4.0220, 4.3120, 11.4446)
Luminance	0.0431 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#143D5F #5F3614

analogous

#145F5B #143D5F #14185F

triadic

#143D5F #5F143D #3D5F14

tetradic

#143D5F #5B145F #5F3614 #185F14

square

#143D5F #5B145F #5F3614 #185F14

split-complementary

#143D5F #5F1418 #5F5B14

monochromatic

#051019 #091D2C #143D5F #1F5D92 #297EC4

Accessibility & contrast

On white

11.28

#143D5F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.86

#143D5F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #143D5F

11.28:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##143D5F	#FFFFFF	#000000	##FFFFFF
##143D5F	1.00	11.28	1.86	11.28
#FFFFFF	11.28	1.00	21.00	1.00
#000000	1.86	21.00	1.00	21.00
##FFFFFF	11.28	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2D3E60

Deuteranopia (green-blind)

#23375E

Tritanopia (blue-blind)

#004549

Achromatopsia (no color)

#3B3B3B

Design tokens & code

CSS

--color: #143d5f;
/* rgb */ color: rgb(20, 61, 95);
/* oklch */ color: oklch(35.0% 0.075 247.2);

Tailwind

colors: {
  custom: {
    50: '#5d728c',
    500: '#143d5f',
    950: '#000000',
  },
}

SCSS

$custom: #143d5f;
$custom-light: #5d728c;
$custom-dark: #000000;

JSON

{
  "hex": "#143d5f",
  "rgb": {
    "r": 20,
    "g": 61,
    "b": 95
  },
  "hsl": {
    "h": 207.2,
    "s": 65.217,
    "l": 22.549
  },
  "oklch": {
    "l": 0.34965,
    "c": 0.07468,
    "h": 247.2
  },
  "luminance": 0.04312
}

Semantic roles & 50–950 ramp

primary

#143D5F

secondary

#976338

accent

#8C40E8

background

#F5F6F8

surface

#E9ECF0

border

#C5C7CB

text

#05070C

muted

#797A7D

Preview Lab

Preview with #143D5F

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

Preview Lab → · Contrast checker → · Palette generator →