#143C5F#143C5F

#143C5F is a dark, moderate cyan. Relative luminance 0.042; OKLCH L 34.7% C 0.076 H 248.4°. Best body text is #FFFFFF at 11.40:1 contrast (WCAG AA passes).

Color values

HEX	#143C5F
RGB	rgb(20, 60, 95)
HSL	hsl(208, 65%, 23%)
HSV	hsv(208, 79%, 37%)
CMYK	cmyk(78.9%, 36.8%, 0%, 62.7%)
CIE-LAB	lab(24.34, -0.42, -24.78)
CIE-LCH	lch(24.34, 24.79, 269.03°)
OKLab	oklab(34.7% -0.0279 -0.0704)
OKLCH	oklch(34.7% 0.076 248.4)
XYZ	xyz(3.9691, 4.2062, 11.4269)
Luminance	0.0421 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#143C5F #5F3714

analogous

#145F5C #143C5F #14175F

triadic

#143C5F #5F143C #3C5F14

tetradic

#143C5F #5C145F #5F3714 #175F14

square

#143C5F #5C145F #5F3714 #175F14

split-complementary

#143C5F #5F1417 #5F5C14

monochromatic

#051019 #091C2C #143C5F #1F5C92 #297CC4

Accessibility & contrast

On white

11.40

#143C5F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.84

#143C5F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #143C5F

11.40:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##143C5F	#FFFFFF	#000000	##FFFFFF
##143C5F	1.00	11.40	1.84	11.40
#FFFFFF	11.40	1.00	21.00	1.00
#000000	1.84	21.00	1.00	21.00
##FFFFFF	11.40	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2C3E60

Deuteranopia (green-blind)

#21375E

Tritanopia (blue-blind)

#004449

Achromatopsia (no color)

#3A3A3A

Design tokens & code

CSS

--color: #143c5f;
/* rgb */ color: rgb(20, 60, 95);
/* oklch */ color: oklch(34.7% 0.076 248.4);

Tailwind

colors: {
  custom: {
    50: '#5d718c',
    500: '#143c5f',
    950: '#000000',
  },
}

SCSS

$custom: #143c5f;
$custom-light: #5d718c;
$custom-dark: #000000;

JSON

{
  "hex": "#143c5f",
  "rgb": {
    "r": 20,
    "g": 60,
    "b": 95
  },
  "hsl": {
    "h": 208,
    "s": 65.217,
    "l": 22.549
  },
  "oklch": {
    "l": 0.34701,
    "c": 0.07572,
    "h": 248.4
  },
  "luminance": 0.04207
}

Semantic roles & 50–950 ramp

primary

#143C5F

secondary

#976438

accent

#8E40E8

background

#F5F6F8

surface

#E9ECF0

border

#C5C7CB

text

#05070C

muted

#797A7D

Preview Lab

Preview with #143C5F

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

Preview Lab → · Contrast checker → · Palette generator →