#143B4F#143B4F

#143B4F is a dark, muted cyan. Relative luminance 0.038; OKLCH L 33.5% C 0.056 H 234.4°. Best body text is #FFFFFF at 11.88:1 contrast (WCAG AA passes).

Color values

HEX	#143B4F
RGB	rgb(20, 59, 79)
HSL	hsl(200, 60%, 19%)
HSV	hsv(200, 75%, 31%)
CMYK	cmyk(74.7%, 25.3%, 0%, 69%)
CIE-LAB	lab(23.14, -6.19, -16.17)
CIE-LCH	lch(23.14, 17.31, 249.04°)
OKLab	oklab(33.47% -0.0325 -0.0454)
OKLCH	oklch(33.47% 0.056 234.4)
XYZ	xyz(3.2632, 3.8408, 7.9650)
Luminance	0.0384 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#143B4F #4F2814

analogous

#144F46 #143B4F #141E4F

triadic

#143B4F #4F143B #3B4F14

tetradic

#143B4F #46144F #4F2814 #1E4F14

square

#143B4F #46144F #4F2814 #1E4F14

split-complementary

#143B4F #4F141E #4F4614

monochromatic

#061218 #08171E #143B4F #205F80 #2D84B1

Accessibility & contrast

On white

11.88

#143B4F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.77

#143B4F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #143B4F

11.88:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##143B4F	#FFFFFF	#000000	##FFFFFF
##143B4F	1.00	11.88	1.77	11.88
#FFFFFF	11.88	1.00	21.00	1.00
#000000	1.77	21.00	1.00	21.00
##FFFFFF	11.88	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#313A50

Deuteranopia (green-blind)

#29354F

Tritanopia (blue-blind)

#004042

Achromatopsia (no color)

#373737

Design tokens & code

CSS

--color: #143b4f;
/* rgb */ color: rgb(20, 59, 79);
/* oklch */ color: oklch(33.5% 0.056 234.4);

Tailwind

colors: {
  custom: {
    50: '#5a7080',
    500: '#143b4f',
    950: '#000000',
  },
}

SCSS

$custom: #143b4f;
$custom-light: #5a7080;
$custom-dark: #000000;

JSON

{
  "hex": "#143b4f",
  "rgb": {
    "r": 20,
    "g": 59,
    "b": 79
  },
  "hsl": {
    "h": 200.339,
    "s": 59.596,
    "l": 19.412
  },
  "oklch": {
    "l": 0.33466,
    "c": 0.05585,
    "h": 234.4
  },
  "luminance": 0.03841
}

Semantic roles & 50–950 ramp

primary

#143B4F

secondary

#875338

accent

#7B45E3

background

#F5F6F7

surface

#E9ECEE

border

#C5C7C9

text

#04070A

muted

#797A7C

Preview Lab

Preview with #143B4F

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

Preview Lab → · Contrast checker → · Palette generator →