#143F5F#143F5F

#143F5F is a dark, moderate cyan. Relative luminance 0.045; OKLCH L 35.5% C 0.073 H 244.7°. Best body text is #FFFFFF at 11.02:1 contrast (WCAG AA passes).

Color values

HEX	#143F5F
RGB	rgb(20, 63, 95)
HSL	hsl(206, 65%, 23%)
HSV	hsv(206, 79%, 37%)
CMYK	cmyk(78.9%, 33.7%, 0%, 62.7%)
CIE-LAB	lab(25.35, -2.44, -23.19)
CIE-LCH	lch(25.35, 23.32, 264.00°)
OKLab	oklab(35.49% -0.0311 -0.0657)
OKLCH	oklch(35.49% 0.073 244.7)
XYZ	xyz(4.1308, 4.5295, 11.4808)
Luminance	0.0453 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#143F5F #5F3414

analogous

#145F59 #143F5F #141A5F

triadic

#143F5F #5F143F #3F5F14

tetradic

#143F5F #59145F #5F3414 #1A5F14

square

#143F5F #59145F #5F3414 #1A5F14

split-complementary

#143F5F #5F141A #5F5914

monochromatic

#051119 #091D2C #143F5F #1F6192 #2982C4

Accessibility & contrast

On white

11.02

#143F5F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.91

#143F5F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #143F5F

11.02:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##143F5F	#FFFFFF	#000000	##FFFFFF
##143F5F	1.00	11.02	1.91	11.02
#FFFFFF	11.02	1.00	21.00	1.00
#000000	1.91	21.00	1.00	21.00
##FFFFFF	11.02	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#304060

Deuteranopia (green-blind)

#26395E

Tritanopia (blue-blind)

#00474A

Achromatopsia (no color)

#3C3C3C

Design tokens & code

CSS

--color: #143f5f;
/* rgb */ color: rgb(20, 63, 95);
/* oklch */ color: oklch(35.5% 0.073 244.7);

Tailwind

colors: {
  custom: {
    50: '#5d738c',
    500: '#143f5f',
    950: '#000000',
  },
}

SCSS

$custom: #143f5f;
$custom-light: #5d738c;
$custom-dark: #000000;

JSON

{
  "hex": "#143f5f",
  "rgb": {
    "r": 20,
    "g": 63,
    "b": 95
  },
  "hsl": {
    "h": 205.6,
    "s": 65.217,
    "l": 22.549
  },
  "oklch": {
    "l": 0.35495,
    "c": 0.07271,
    "h": 244.7
  },
  "luminance": 0.0453
}

Semantic roles & 50–950 ramp

primary

#143F5F

secondary

#976038

accent

#8840E8

background

#F5F7F8

surface

#E9EDF0

border

#C5C8CB

text

#05080C

muted

#797B7D

Preview Lab

Preview with #143F5F

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

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